Transgo Performance Shift kits and Valve body kits for TH350 transmissions. 46930-HD2 4L80E Transmission performance reprogramming kit, Automatic shift 1991-on Comes with instructions. Transgo 46-PLT-07 Competitors Price $31.12 The installation of an OEM 4L80E fluted sun gear shaft bushing into the overrun clutch housing is highly recommended. See Figure 8. The flutes will channel 4L80E SHIFT KIT INSTRUCTIONS Author: C&K Performance Created Date: TransGo even has kits for computer-controlled, 4-speed automatics. Their performance shift kits can be installed with the transmission in the vehicle and they come with complete instructions. Some kits even include a step-by-step video to walk you through the installation process. Find TransGo Performance Shift Kits 4L60E-HD2 Transgo 4l60e-hd2 Shift Kit Instructions Driving the car I never would have noticed an issue, the shift points up and down all Both the Transgo 4L60E-HD2-C kit and the SK4L60E L kit have a replacement Besides, in the Transgo instructions they give you choices for drill size. Find TransGo Performance Shift Kits 4L80E- Re: anyone have experience converting a 4l80E to full manual Bumping this thread, as I put a 4L80e with transfer case out of a diesel 4x4 GMC truck in my '55 Chevy 4x4 conversion ten or more years ago, and put a TCI elec. contoller on it. 4l80e 4l85e transmission shift kit® transgo® sk®4l80e with boost valve fits '91-'09. menu. sign in or register; cart 0. includes installation instructions; 4l80e 4l85e transmission reprogramming shift kit heavy duty transgo 4l80e-hd2 fits '91+ 4L60E 4L65E Transmission shift kit Transgo SK 4L60E Corrects, prevents or reduces erratic pump slide bounce that easy to follow instructions. Competitors Price $62.03 325 transmission shift kit, 325 4L transmission shift kit, 700 transmission shift kit, 4L60E transmission shift kit Transgo Shift Kits for GM, Ford and Dodge from PATC. We stock all Transgo Shift Kits for American RWD transmissions