Quote:
Originally Posted by informi
I have not gotten a new transmission yet and I have a line on a 94 4l80e. I am wondering if that is too old to make work correctly with my 02 PCM, harness etc? I know I will need to get the harness changed, but are there other differences because of its age that I should be aware of? Any suggestions or info would be great. Originally it was with a 5.7.
Thanks
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The early cases are slightly different, mostly the coolant lines. In '99 or so the cases changed, probably due to the LSx engines and the cases changed. Usually the earlier cases are preferred since the coolant lines are easier to run.
As far as the electronics, all the same as far as plug and play.
I would definitely have the roller clutch swapped out for a 34 element spray and have a TransGo HD-2 shift kit installed prior to putting it in your ride. Well worth the long term benefits.