Mechanics

4L60E TRANSMISSION

1993 GMC Jimmy • 240,000 miles

I have a 1993 gmc jimmy 4x4 4.3 w engine code with the 4l60e trans I was looking for a replacement trans and have found out that it is 1993 s series only with two different trans codes TAD and THD can I use a trans out of some thing else or what is the difference between the two trans codes
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Jdchevyguy1
July 22, 2012.



You can use a turbo 350 with the small bellhousing.

Roy

ASEMaster6371
Jul 23, 2012.
Is there any other 4l60e that I can use or do I have to use the one that is coded the same as the one in my truck

Tiny
Jdchevyguy1
Jul 23, 2012.
You can use another one. It does not have to be the one in the truck. Trans shops swap out units all the time.

Roy

ASEMaster6371
Jul 23, 2012.
What is the difference between the two trans codes besides TAD being 1st gen and THD being 2nd gen

Tiny
Jdchevyguy1
Jul 23, 2012.
Twin Transmission does a great job with 4l60e transmissions. Check them out online at http://www.twincharlotte.com

Tiny
Beth Jackson
Jul 17, 2013.