1997 GMC Truck will an 89 halfton tranny Fit my 97

Tiny
UNCLEMYMO
  • MEMBER
  • 1997 GMC TRUCK
Transmission problem
1997 GMC Truck V8 Four Wheel Drive Automatic

I have a GMC 1500 4X4 with a 350 5.7 litre vortec engine I need a different transmission my next store neighbor has an 89 chev 350 5.7 litre engine with a good transmission will it fit mine? And are the 4L60 and the 700r4 the same transmission?
Wednesday, December 23rd, 2009 AT 6:29 PM

1 Reply

Tiny
MICKEY-D
  • MECHANIC
  • 304 POSTS
They are not the same trans, although they may fit the rear of the block. A salvage yard would be able to tell you what will interchange, and what wont. Flex plates could be different, as well as driveshaft yokes, and any electronics may be different.
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Thursday, December 31st, 2009 AT 8:15 PM

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