Not sure why so much is different
4L80E is a bread and butter transmission
went into a lot of GM vehicles for many years
mounts for the shift puzzled me
until I read transfer case ..whats your truck got
if you know what wire does what you can make the connections work to the truck
is this information any help
GM 4L80E Automatic Transmission
SOURCE: 1995 gmc truck shift problems
It sounds like the power supply is dead for the transmission. Check the transmission fuse for power.
SOURCE: Will a 1994 chevy 4l80e 4wd swap into a 1995 GMC
with a little tooling around im sure itll fit ,you might have to change the tail to trans case then again its a chevy so bolt it in
SOURCE: Will a 1994 chevy 4l80e 4wd trans (form a Suburban
good luck should be able to swap shaft but what about the switches inside the trans let me know how it goes
SOURCE: 95 GMC K2500 4x4, 4L80E transmission problem
VSS is still good if you have your cruise control and speedometer working, it's common for the wire harness to the solenoid on the passenger side to get corroded and or the sires to break due to the heat given off from the catalytic converter beside the transmission. Check the condition of the wire harness and clean the contacts with brake cleaner and reinstall with some grease to keep the corrosion away, hint use marine grease. Marine grease cost a few cents more but resist water longer and better then normal lutetium grease, I use it on everything and get longer life out of my u-joints and front end suspension. Most transmission shop will test drive free of charge and scan the truck for DTC codes that sometimes will not show up in the check engine light, but mostly you do have an electrical problem so check all your fuses and wire harness from the ECM to the transmission. Good luck and keep me posted, be glad to help you get your truck running 100% again soon without some transmission shop getting you to replace the whole transmission for $2,300. If you are going to have the transmission service, "fluid and filter changed" Have them replace your boost valve. The boost valve is around $45.00, the boost valve controls the amount of transmission fluid pressure and low transmission fluid pressure will cause the transmission to fail. I replace mine every second transmission service and i have over 365,000 miles on mine. Keep up the good work friend.
Testimonial: "Excellent information from the beginning.Thank you.I worked each of the connections I could locate and disc. the bat to clear the code. Good so far. "
SOURCE: I am wondering which transmissions will fit a 1997
Unless you want to do a lot of work i would find another 4l80E or rebuild yours. 700r4 is not electronic shift and you have no connection for the shift cable. And if you get a electronic 700r4 (4L60E) The plugs are completely different and you would need to change the whole engine harness and ecm.
Testimonial: "Very quick and helpful response. Greatly appreciate the help."
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