4R100-HD2
(1989-up)

4R100-HD2 TUGGER Reprogramming Kit™ All E40D, 4R100 1989-on

For hard working gas or diesel vehicles that regularly tow heavy loads

Features:

• Doubles low clutch holding pressure in manual first gear for downhill compression braking
• Handles exhaust brake
• Adjust shift firmness
• Better cooling/lubrication and converter feed/capacity using included optional internal upgrades

Corrects/Prevents/Reduces:

• Everything shown in E4OD-HD2 Also Includes:
• All items listed in SK E40D
• Calibration plate for firmness adjustments
• Quick-fill valve
• L/R mod boost valve