4l80e manual valve body conversion

 · Posts. #2 · . I've done the full manual 4L80Es. It is not difficult at all to get firm or even VERY firm shifts with a 4L80E in either the full manual or electronic configuration. Shift harness is going to depend on the calibration of the VB (and electronics if used). Converter selection is also a big deal but with the diesel. Auto shift with Manual Low Transbrake (transbrake can only be activated in manual low position) $ 4LFMTB1: Full manual forward pattern with Manual Low Transbrake: $ 4LATB3: Auto shift with D3 transbrake: $ 4LFMTB3: Full manual shift with D3 brake (allows 2nd or even 3rd gear launch) $ 4LATBMissing: body conversion. Easily Convert the 4L80E to Full Manual Control When performing this conversion, be sure to include these modifications: 1. Plug the reverse boost passage in stator support (figure 5). That’ll close the reverse boost circuit, eliminating dangerously high line pressure in reverse. I had a quantity of ” cup plugs made some time.

4L80E Master Rebuild Kit with 4 Red Eagle Power Packs and Kolene steels, On $ Select options; 4L80E Transmission, Full Manual - Performance 4L80E Transmission - Level 4 $ Select options; Chevy 4L80E Transmission Combo Kit / Swap Kit to a 4L80E from a 4L60E Sale! $ $ Select options. 4L80E Transmission, Full manual shift, No computer, and no toggle switches. Valve body assembly with separator plate and accumulator blockoff plate. 5/ set screw The internal mods that need to be performed are: Drilling a bleed/release hole in the direct drum. We recommend drilling a" hole at a slight angle as outboard as possible on the drum as seen here: We also leave the center seal off the.

Posts. #13 · . Only show this user. Are you referring to making the 4L80 completely manual in shifting or eliminating the electronics so it can be run in other applications. Both have been available for a long time. Manual valve body means you control all shifting. That's every gear. The 4l80e will retain its forward shift pattern with the manual valve body modification. Some shifter manufacturers sell a replacement set of gates for their shifters to convert from three speed to a four speed. I got some replacement gates from TCI for my shifter. 8. So this article provides a tried-and-true procedure for converting any 4L80E transmission to full manual control, eliminating the need for a PCM. The 4L80E uses shift solenoids A and B to control upshifts and downshifts in all forward ranges. The solenoids are both powered with system voltage when the ignition is on.