Engineered for heavy-duty work or performance trucks, the all new ALLISON-11UP performance valve body Reprogramming Kit™ includes pump and valve body components to provide maximum holding capacity in all clutch packs and lockup—stock or tuned.

Patent-pending technology produces smart, on-demand pressure increases for faster line rise, quicker clutch apply times and increased clutch and TCC holding capacity when throttle is added, without raising line to unsafe levels preventing unnecessary heat and wear.

Features:

Firm, crisp upshifts for added durability and performance in all applications

Increased TCC holding capacity

Maintains factory shift feel at light to medium throttle with progressively firmer upshifts through WOT

Customizable shift-feel calibrations for stock, hard-working, or street show-off and strip trucks

Engineered for work or performance trucks—stock or tuned

Corrects, Prevents, Reduces:

Sloppy shifts with ratio codes

No forward movement

3-4 slip

Burnt frictions

Low line pressure

Includes:

High-performance pressure regulator spring

Calibrated main control valve and spring

Re-engineered TCC regulator valves (2) for both early and late designs

Replacement main mod spring

Recalibrated PCS 1 and 2 springs

Unbreakable billet 1-2-3-4 back-feed retainer

Extension and pump housing gaskets