TransGo 4L80E-3 Reprogramming Kit

TransGo 4L80E-3 Reprogramming Kit

Enhance the performance and durability of your 1991–2013 GM 4L80E/4L85E transmission (gas engines only) with the TransGo 4L80E-3 Reprogramming Kit. Designed for off-road use, it offers full manual control for precise upshifting and downshifting, eliminating automatic shift functions and TCM requirements.

Features & Benefits

• Aggressive line pressure curve for durability and performance
• Dual feed 3rd gear clutch triples torque capacity
• Boost valve system resists wear and regulates pressure
• Prevents soft shifts, clutch failure, and runaway boost pressure

Corrects/Prevents

• High-pressure parts breakage
• Soft 2-3 shift
• Burnt direct clutch
• Low pressure from solenoid filter issues

Kit Includes

• Boost valve and bushing
• Triple separator plate
• Vacuum modulator assembly
• Drill bits and gaskets
• Snap rings, springs, and zip ties

Performance

Ideal for off-road use, this kit ensures reliable shifts, prevents damage, and boosts torque capacity. For torque converter clutch operation, additional wiring is required (not included).