4l60e transmission

1993 GMC JIMMY
240,000 MILES
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JDCHEVYGUY1
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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
Jul 22, 2012 at 11:55 PM
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ASEMASTER6371
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you can use a turbo 350 with the small bellhousing.

Roy
Jul 23, 2012 at 12:30 AM
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JDCHEVYGUY1
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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
Jul 23, 2012 at 7:24 PM
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ASEMASTER6371
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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
Jul 23, 2012 at 7:30 PM
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JDCHEVYGUY1
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what is the difference between the two trans codes besides TAD being 1st gen and THD being 2nd gen
Jul 23, 2012 at 7:36 PM