Transmission replacement

1994 GMC SIERRA
332,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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DREECE1993
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I have the truck listed above with the 4l60e transmission. I'm looking to replace transmission but I've heard only 1993-1994 will work something to do with the torque converter. is this true? Thanks
Jan 3, 2021 at 7:22 AM
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DANNY L
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Hello, I'm Danny.

Yes, only 1993 and 1994 4L60E transmissions will work. The 1988-1992 were 700R4 transmissions were a completely different style and the 1995 4L60E is a 1 year only. The 4L60 was redesigned 1996 and later and is computer controlled differently with OBD2 being introduced. I've attached a few steps below describing how to remove and replace the transmission in your truck. Hope this helps and thanks for using 2CarPros. Happy New Year.
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Jan 3, 2021 at 8:15 PM
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DREECE1993
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Could the transmission come from a 4.3 or only a 5.7 in 1993 to 1994? I found a transmission out of a 1994 Chevrolet 1500 4x4 ext cab, but the person said he does not know what engine it had since it was removed. thanks.
Jan 5, 2021 at 6:14 AM
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DANNY L
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Hello again.

Sorry but the bell housing is different between the two. You will need to find a V8 version 1993-1994 4x4 4L60E transmission for your truck to be compatible. Hope this helps and thanks again for using 2CarPros.

Danny-
Jan 6, 2021 at 9:41 PM