1985 GMC k1500 4×4

Asked by Jan 05, 2016 at 08:05 PM about the GMC Sierra C/K 1500

Question type: Maintenance & Repair

I have a 1985 GMC k1500 Sierra Classic
4x4. It hasa 700r4 transmission in it that
won't shift into 3rd. Its automatic. I have put
2 transmissions in it in a year one junkyard
and one rebuilt. My question in can I put a
4L60e in it.

2 Answers


No because of the computer controls the shift points, the computer in the 85' is not designed for that trany.

Best Answer Mark helpful

Thats what I thought. Thanks

Your Answer:


GMC Sierra C/K 1500 Experts

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    Andrew Olsen
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