Blackheart Transmission Crossmember; LS/Gen-V LT Swap; Fits 1973-1987 C10/15 2WD/1979-1987 C20 2WD/1973-1982 Blazer/Jimmy 2WD 4L80 Transmission;
These new crossmembers have been redesigned and are less expensive than the previous crossmember & work with engine mounting brackets BHS540 for both the GM LS & Gen-V LT engines. Choose the crossmember based on the transmissions that you want to run in your 1973-1987 C10
  • Revised Design With Lower Pricing
  • Designed For Use W/1973-1987 C10
  • Use w/BHS540 Engine Mount
  • Designed Using CAD Modeling
  • Welded Steel Construction w/Black Powder Coated Finish

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.