jeep xj 1st gear lockoutaw4 mods
aw4 transmission stand alone controller
aw4 manual shift
winters shifter 6l80e
aw4 first gear lock
aw4 upgrades
aw4 tcu

The valve body solenoids are controlled by signals from the TCU. Signal sequence is determined by vehicle speed and throttle position. A seperate planetary gearAW4/A340 Shift Improver Kit Gasket Kit for AW4/A340 Valve Body. GM 4L60E. 4L60E-HD2 Manual control 4L60E-3 Manual control of all gears, includes vacuum