What years 4180e will work in my 96 1ton

Asked by Jan 21, 2016 at 10:32 PM about the 1996 Chevrolet C/K 3500 Cheyenne LB 4WD

Question type: Maintenance & Repair

I have a 1996 4x4 1 ton chevy with a 454
and a 4l80e some people tell me I have to
get a transmission from the same year with
the same engine is this true ? Or can I take a
4l80e transmission from my buddies 98 3/4
ton with a 350

4 Answers


If I remember this right the big block 4L80e has a larger bell housing than the 4L80e on the 350 but I think that 86 thru 89 big block 4L80e's were the same mount wise and electrically, but it has been a while sense I looked at one.

I think the bell housing should be the same I was more looking to find out if anything is differant electronically or things like that


I checked a piece written on Hotrodders .com about the 4L80e and I stand corrected, it will fit both small and big blocks but I could not find any mention of the electronics being different, so I would assume that any change would be done in the programming of the computer.


The '98 trans will be almost the same as long as it is also 4x4 truck. Will need to swap cooler lines. 2wd has a longer tailshaft and will not mate with the T-case. FYI. 1.) The 4l80e was released in '91, replaced the 3 spd TH400. 91-93 interchangeable, 94's are alone and 96 and up to the new bellhousing (LS style engines in 99). 2.) Bellhousing's are the same from the 4.3 v-6 up to the big blocks. Including the 6.2 and 6.5 diesels. The 4L60e was changed electronically around 96 though.

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