Our Full Manual Competition 4x4 Transmission is built with drag race quality components for sand draggers, hill climbers or tractor pullers.
Whether you drive a sand dragger, hill climber or tractor puller, TCI has the transmission for you. The competition line of 4x4 transmissions is built following the same specifications used when building thousands of drag race units and are designed for 600+ HP applications. These units are also available with Transbrake Valve Bodies.

Application Summary:

Year Make/Model
1975-1980 Chevrolet K10
1976-1980 Chevrolet K10 Suburban
1975-1980 Chevrolet K20
1975-1980 Chevrolet K20 Suburban
1977-1980 Chevrolet K30
1975-1980 Chevrolet K5 Blazer
1975-1980 GMC Jimmy
1975-1978 GMC K15
1975-1978 GMC K15 Suburban
1979-1980 GMC K1500
1979-1980 GMC K1500 Suburban
1975-1978 GMC K25
1975-1978 GMC K25 Suburban
1979-1980 GMC K2500
1979-1980 GMC K2500 Suburban
1977-1978 GMC K35
1979-1980 GMC K3500

Additional Information:

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.