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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> Can I use a 4L80E from a 98 GMC Chevy 3500HD in my 93 Sierra 2500HD??
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Thread: Can I use a 4L80E from a 98 GMC Chevy 3500HD in my 93 Sierra 2500HD?? Reply to Thread
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Topic Review (Newest First)
01-29-2012 03:05 PM
Crosley
Quote:
Originally Posted by mcampbell02
But they are both the same transmission 4L80E...do you know why?? And if not, do you know which other vehicle would be have the same transmission...if any...my truck is a 1993 GMC Sierra 2500HD 5.7...the VIN states it has the 4L80E transmission in it...I thought maybe there would be another vehicle I could get a transmission out of to replace mine as my reverse is gone.

Thanks again!!
Mary

look at your 4L80e trans... electrical connector on the driver's side for a retaining bolt in the center of the connector. 1998 is a plug / clip on design with no retaining bolt. You would need to update the wire harness connector I am sure

Look at cooler line fittings. 1998 has different location and design of cooler fittings.

Check length on 2 wd transmission. The HD 2wd trucks used a 1 inch longer tail & out put shaft.
01-29-2012 02:52 PM
mcampbell02 But they are both the same transmission 4L80E...do you know why?? And if not, do you know which other vehicle would be have the same transmission...if any...my truck is a 1993 GMC Sierra 2500HD 5.7...the VIN states it has the 4L80E transmission in it...I thought maybe there would be another vehicle I could get a transmission out of to replace mine as my reverse is gone.

Thanks again!!
Mary
01-29-2012 02:06 PM
mmerlinn Not without a lot of work and plenty of money.
01-29-2012 01:50 PM
mcampbell02
Can I use a 4L80E from a 98 GMC Chevy 3500HD in my 93 Sierra 2500HD??

Hi there! Just wondering...Can I use a 4L80E from a 98 GMC Chevy 3500HD in my 93 Sierra 2500HD?? I was told only a 1993 would/could be used..but is that only to swap out of another Sierra??
Any help would be appreciated.
Thanks!
Mary

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