4L80-D3-BRKIT

The TransGo TransBrake Kit delivers the ideal combination of street reliability and race-ready performance. It retains factory electronic shift controls for everyday driving while adding manual up-shift capability for track use.

With lightning fast release for hard launches in both D3 (auto up-shifts) and D1 (manual up-shifts), this kit offers total control. A built-in safety switch prevents accidental activation unless the transmission is in first gear and constant line pressure ensures maximum holding power throughout the entire range. To ensure maximum holding power the kit is designed to have fixed 180 psi of line pressure forward with boosted reverse pressure of 250 psi.

Features:

• Factory shift control for daily driving
• Manual up-shifting option for drag racing
• Lightning fast release launch in D3 (auto) or D1 (manual)
• Safety switch prevents accidental activation
• Constant pressure; 180 psi forward, 250 psi reverse
• Reverse gear requires activation for added control
• Full manual shift option
• Not reverse-patterned

Includes:

• TransGo engineered TransBrake assembly
• Safety pressure switch
• Drop-in pressure regulator boost valve assembly
• Constant pressure valve lineup
• Dual feed triple valve body plate and gaskets
• Electrical connectors
• Quick release direct clutch return springs*
• Heavy duty intermediate snap ring*

* Installation requires transmission removal