Transmission replacement

DREECE1993

MEMBER
1994 GMC SIERRA
5.7L
V8
4WD
AUTOMATIC
332,000 MILES

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

3 Replies

DANNY L

EXPERT

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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Sunday, January 3rd, 2021 AT 8:15 PM

DREECE1993

MEMBER

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.

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Tuesday, January 5th, 2021 AT 6:14 AM

DANNY L

EXPERT

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-

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Wednesday, January 6th, 2021 AT 9:41 PM