Diesel Transmission Upgrades

Chevy/GMC Truck 01-05 Shift Enhancer, Duramax

[# BLY-153001 ] These transmission kits increase line pressure in the transmission, which reduces torque converter and transmission clutch slippage and improves shifting. Easy to install using basic hand tools. Bully Dog's shift enhancers improve shift and line pressure while reducing slipping and lowering heat. The end result is firmer, quicker shifts which vas

Auto Trans Fluid 1 Gal.

[# BLY-105100 ] Dramatically reduces friction and metal to metal contact in the pump by forming a unique lubricating film. It demonstrates incredible lubricating film strength capable of withstanding loads of up to 1.4 GPa (200,000 psi). Lowers the temperature at which typical hydraulic oils will flow by up to 10 C and reduces the risk of cold start up wear. Fric

E4od & 4R100 Shift Kit

[# BLY-151000 ] These transmission kits increase line pressure in the transmission, which reduces torque converter and transmission clutch slippage and improves shifting. Easy to install using basic hand tools. Bully Dog's shift enhancers improve shift and line pressure while reducing slipping and lowering heat. The end result is firmer, quicker shifts which vast

Chevy/GMC Truck Durmax Shift Enhancer Super Aggressive Shift

[# BLY-153002 ] These transmission kits increase line pressure in the transmission, which reduces torque converter and transmission clutch slippage and improves shifting. Easy to install using basic hand tools. Bully Dog's shift enhancers improve shift and line pressure while reducing slipping and lowering heat. The end result is firmer, quicker shifts which vast

Chevy/GMC Truck Super High Output Allison Trans. Gm/Chevy

[# BLY-63608 ] Duramax and 8.1 Liter Vortec owners needing more performance from the Allison transmission can step up to high performance transmission upgrades. The upgrade includes and goes beyond the Allison Shift Enhancer by upgrading C1 through C4 clutch packs plus the main pressure and back flow valves. Bully Dog will warranty the transmission for unlimite