SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

SuperSprings
SSPSSA13
5 In Stock
$899.97
$947.26
$899.97

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SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

SuperSprings

SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

$947.26 $899.97
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System
SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

SuperSprings

SuperSprings SSA13 Self-Adjusting Suspension Stabilizing System

$947.26 $899.97
Description
SuperSprings; Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad;
SuperSprings(R) are a unique and patented self-adjusting suspension stabilizing system for vehicles with rear leaf springs, designed to level loads and reduce body roll. SuperSprings(R) provide users extra load support and reduce body roll without compromising ride quality. They are manufactured using a variety of different sized springs to support multiple applications. All SuperSprings(R) are manufactured in the U.S.A. from SAE5160H high grade, shot peened steel.
  • Sold as a pair (left and right)
  • Shot Peened To Relieve Spring Stress And Extend Product Life
  • Never Load Any Vehicle Beyond The Manufacturers GVWR
  • Requires no maintenance; Proudly made in the U.S.A.
  • Self Adjusting Suspension Stabilizing System
  • Provides 3000 Pounds Additional Load Leveling Ability
  • Reduces Body Roll Up To 30 Pct Without Compromising Ride Quality
  • Works In Conjunction w/Original Equipment Leaf Spring Assembly
  • Adjustable Shackles Allow Installation To Suit Various Needs
  • Typical Installation Completed In Approximately One Hour
  • SAE 5160H 51 Pct Alloy/60 Pct Carbon High Grade Steel

Application Summary:

Year Make/Model
1988-2000 Chevrolet C2500
1988-2000 Chevrolet C3500
1996-2021 Chevrolet Express 3500
1988-2000 Chevrolet K2500
1988-2000 Chevrolet K3500
1989 Chevrolet R2500
1989-1991 Chevrolet R3500
2021 Chevrolet Silverado 1500
1999-2004 Chevrolet Silverado 2500
2001-2021 Chevrolet Silverado 2500 HD
2007 Chevrolet Silverado 2500 HD Classic
2001-2006 Chevrolet Silverado 3500
2007 Chevrolet Silverado 3500 Classic
2007-2021 Chevrolet Silverado 3500 HD
1989-1991 Chevrolet V3500
1980-1999 Ford F-250
1997 Ford F-250 HD
1999-2007 Ford F-250 Super Duty
2011-2016 Ford F-250 Super Duty
1980-1997 Ford F-350
1999-2007 Ford F-350 Super Duty
2011-2016 Ford F-350 Super Duty
1988-2000 GMC C2500
1988-2000 GMC C3500
1988-2000 GMC K2500
1988-2000 GMC K3500
1988-1989 GMC R2500
1988-1991 GMC R3500
1996-2021 GMC Savana 3500
1999-2004 GMC Sierra 2500
2001-2021 GMC Sierra 2500 HD
2007 GMC Sierra 2500 HD Classic
2001-2006 GMC Sierra 3500
2007 GMC Sierra 3500 Classic
2007-2021 GMC Sierra 3500 HD
1988-1991 GMC V3500

Additional Information:

Video
Fitment
Year
Make
Model
Submodel
Notes
1988 - 2000
Chevrolet
C2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 2000
Chevrolet
C3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1996 - 2021
Chevrolet
Express 3500
Rear
4 X 2
For cutaway models only
Do not use on van models
PSP-7 (included)
1996 - 2023
Chevrolet
Express 3500
Rear
For cutaway models only
Do not use on van models
4 X 2
PSP-7 (included)
2021
Chevrolet
Express 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2018
Chevrolet
Express 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Do Not Use On Van Model~Poly Spring Pad PN[PSP-7] Included
1996 - 2017
Chevrolet
Express 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-7] Included
2019 - 2020
Chevrolet
Express 3500
Base
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2019 - 2020
Chevrolet
Express 3500
Base
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Do Not Use On Van Model~Poly Spring Pad PN[PSP-7] Included
2019 - 2020
Chevrolet
Express 3500
LS
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2019 - 2020
Chevrolet
Express 3500
LS
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Do Not Use On Van Model~Poly Spring Pad PN[PSP-7] Included
2019 - 2020
Chevrolet
Express 3500
LT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2019 - 2020
Chevrolet
Express 3500
LT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Do Not Use On Van Model~Poly Spring Pad PN[PSP-7] Included
1988 - 2000
Chevrolet
K2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 2000
Chevrolet
K3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1989
Chevrolet
R2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1989 - 1991
Chevrolet
R3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2021
Chevrolet
Silverado 1500
Custom
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
High Country
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
LT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
LTZ
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
RST
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
SSV
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 1500
WT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
1999 - 2000
Chevrolet
Silverado 2500
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
1999 - 2000
Chevrolet
Silverado 2500
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
1999 - 2000
Chevrolet
Silverado 2500
Rear
For cutaway models only
Do not use on van models
4 X 2
PSP-7 (included)
1999 - 2004
Chevrolet
Silverado 2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2011 - 2021
Chevrolet
Silverado 2500 HD
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
2011 - 2021
Chevrolet
Silverado 2500 HD
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
2011
Chevrolet
Silverado 2500 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
MXKT (sold separately)
2011
Chevrolet
Silverado 2500 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
MXKT (sold separately)
2012 - 2023
Chevrolet
Silverado 2500 HD
Rear
For cutaway models only
Do not use on van models
4 X 2
PSP-7 (included)
2021
Chevrolet
Silverado 2500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2001 - 2017
Chevrolet
Silverado 2500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2018 - 2020
Chevrolet
Silverado 2500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2007
Chevrolet
Silverado 2500 HD Classic
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2001 - 2006
Chevrolet
Silverado 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2007
Chevrolet
Silverado 3500 Classic
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2011 - 2021
Chevrolet
Silverado 3500 HD
Rear
4 X 2
For pickup models only
Do not use on chassis cab models, trucks equipped with a top overload spring, or dual rear wheel truck
MXKT (sold separately)
2011 - 2021
Chevrolet
Silverado 3500 HD
Rear
4 X 4
For pickup models only
Do not use on chassis cab models, trucks equipped with a top overload spring, or dual rear wheel truck
MXKT (sold separately)
2011 - 2023
Chevrolet
Silverado 3500 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
MXKT (sold separately)
2011 - 2023
Chevrolet
Silverado 3500 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
MXKT (sold separately)
2007 - 2010
Chevrolet
Silverado 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2019 - 2020
Chevrolet
Silverado 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2011 - 2017
Chevrolet
Silverado 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Single Rear Wheels
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2018
Chevrolet
Silverado 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Single Rear Wheels
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2021
Chevrolet
Silverado 3500 HD
High Country
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 3500 HD
LT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 3500 HD
LTZ
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
Chevrolet
Silverado 3500 HD
WT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
1989 - 1991
Chevrolet
V3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1980 - 1999
Ford
F-250
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1980 - 1999
Ford
F-250
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1980 - 1981, 1984 - 1985, 1988 - 1989, 1992 - 1993, 1996 - 1997
Ford
F-250
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
MXKT (sold separately)
1982 - 1983, 1986 - 1987, 1990 - 1991, 1994 - 1995, 1998 - 1999
Ford
F-250
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1980 - 1981, 1984 - 1985, 1988 - 1989, 1992 - 1993, 1996 - 1997
Ford
F-250
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
MXKT (sold separately)
1982 - 1983, 1986 - 1987, 1990 - 1991, 1994 - 1995, 1998 - 1999
Ford
F-250
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1980 - 1999
Ford
F-250
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-11] Included~Without Factory Top Overload Spring
1997
Ford
F-250 HD
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1997
Ford
F-250 HD
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1997
Ford
F-250 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1997
Ford
F-250 HD
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1997
Ford
F-250 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-11] Included~Without Factory Top Overload Spring
1999 - 2007, 2011 - 2016
Ford
F-250 Super Duty
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-250 Super Duty
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
2014 - 2015
Ford
F-250 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
MXKT (sold separately)
1999 - 2007, 2011 - 2013, 2016
Ford
F-250 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
2014 - 2015
Ford
F-250 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
MXKT (sold separately)
1999 - 2007, 2011 - 2013, 2016
Ford
F-250 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-250 Super Duty
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-11] Included~Without Factory Top Overload Spring
1980 - 1997
Ford
F-350
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1980 - 1997
Ford
F-350
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1987 - 1988, 1992 - 1993
Ford
F-350
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
MXKT (sold separately)
1980 - 1986, 1989 - 1991, 1994 - 1997
Ford
F-350
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1987 - 1988, 1992 - 1993
Ford
F-350
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
MXKT (sold separately)
1980 - 1986, 1989 - 1991, 1994 - 1997
Ford
F-350
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1980 - 1997
Ford
F-350
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-11] Included~Without Factory Top Overload Spring
1999 - 2007, 2011 - 2016
Ford
F-350 Super Duty
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-350 Super Duty
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-350 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-350 Super Duty
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1999 - 2007, 2011 - 2016
Ford
F-350 Super Duty
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-11] Included~Without Factory Top Overload Spring
1988 - 2000
GMC
C2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 2000
GMC
C3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 2000
GMC
K2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 2000
GMC
K3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 1989
GMC
R2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1988 - 1991
GMC
R3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
1996 - 2021
GMC
Savana 3500
Rear
4 X 2
For cutaway models only
Do not use on van models
PSP-7 (included)
1997, 1999, 2001, 2003, 2005, 2007, 2009, 2011, 2013, 2015, 2017, 2019, 2021, 2023
GMC
Savana 3500
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1996, 1998, 2000, 2002, 2004, 2006, 2008, 2010, 2012, 2014, 2016, 2018, 2020, 2022
GMC
Savana 3500
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
2021
GMC
Savana 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2019 - 2020
GMC
Savana 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Do Not Use On Van Model~Poly Spring Pad PN[PSP-7] Included
1996 - 2017
GMC
Savana 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Cutaway Models Only~Leaf Spring Dimensions 49L x 3W x 0.946~Poly Spring Pad PN[PSP-7] Included
2018
GMC
Savana 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Poly Spring Pad PN[PSP-7] Included
1999 - 2000
GMC
Sierra 2500
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
1999 - 2000
GMC
Sierra 2500
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
1999 - 2000
GMC
Sierra 2500
Rear
Do not use on trucks equipped with a top overload spring
4 X 2
PSP-11 (included)
1999 - 2000
GMC
Sierra 2500
Rear
Do not use on trucks equipped with a top overload spring
4 X 4
PSP-11 (included)
1999 - 2004
GMC
Sierra 2500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2011 - 2021
GMC
Sierra 2500 HD
Rear
4 X 2
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
2011 - 2021
GMC
Sierra 2500 HD
Rear
4 X 4
Do not use on trucks equipped with a top overload spring
MXKT (sold separately)
2011 - 2023
GMC
Sierra 2500 HD
Rear
4 X 2
MXKT (sold separately)
For pickup models only. Do not use on trucks with top overload springs. Do not use on chassis cab models.
2011 - 2023
GMC
Sierra 2500 HD
Rear
4 X 4
MXKT (sold separately)
For pickup models only. Do not use on trucks with top overload springs. Do not use on chassis cab models.
2001 - 2017
GMC
Sierra 2500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2018 - 2020
GMC
Sierra 2500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2021
GMC
Sierra 2500 HD
AT4
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 2500 HD
Base
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 2500 HD
Denali
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 2500 HD
SLE
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 2500 HD
SLT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2007
GMC
Sierra 2500 HD Classic
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2001 - 2006
GMC
Sierra 3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2007
GMC
Sierra 3500 Classic
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2011 - 2021
GMC
Sierra 3500 HD
Rear
4 X 2
For pickup models only
Do not use on chassis cab models, trucks equipped with a top overload spring, or dual rear wheel truck
MXKT (sold separately)
2011 - 2021
GMC
Sierra 3500 HD
Rear
4 X 4
For pickup models only
Do not use on chassis cab models, trucks equipped with a top overload spring, or dual rear wheel truck
MXKT (sold separately)
2011 - 2023
GMC
Sierra 3500 HD
Rear
4 X 2
MXKT (sold separately)
For pickup models only. Do not use on trucks with top overload springs. Do not use on chassis cab models.
2011 - 2023
GMC
Sierra 3500 HD
Rear
4 X 4
MXKT (sold separately)
For pickup models only. Do not use on trucks with top overload springs. Do not use on chassis cab models.
2007 - 2017
GMC
Sierra 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2019 - 2020
GMC
Sierra 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2018
GMC
Sierra 3500 HD
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Single Rear Wheels
Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
2021
GMC
Sierra 3500 HD
AT4
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 3500 HD
Base
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 3500 HD
Denali
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 3500 HD
SLE
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
2021
GMC
Sierra 3500 HD
SLT
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
1988 - 1991
GMC
V3500
Rear; Self-Adjusting Suspension Stabilizing System; Provides 3000 lbs Additional Load Leveling Ability; Do Not Exceed GVWR; Incl. Poly Spring Pad
Leaf Spring Dimensions 49L x 3W x 0.946~Requires Mounting Kit PN[MXKT]~Without Factory Top Overload Spring
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All products include a manufacturer warranty, but you can extend this warranty with JB's Purchase Protection Plan.
*Available on select products.