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Old 06-18-2003, 10:21 PM
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4x4 trannie - 700r4 replacement (350?)

I just blew some clutches in my (87 K1500 4x4 long bed) 700r4 transmission. Should I rebuild this, or replace it with a freshly rebuilt TH350 from my totaled 77 GMC 4x4 (short bed). The TH350 has less than 3000 miles on it.
Being frugal, I'm shooting for the TH350 - I already paid for it, but I don't want to create big hassles later.
Also, I need a longer drive shaft, is that all?
Thanks, I'd appresiate any advice you could give.
Terry B

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Old 06-19-2003, 12:02 AM
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depending on what you use the truck for the th350 sounds like the best bet i have a 79 gmc highsierra with the same one and it works just fine for what we do.
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Old 06-19-2003, 04:55 AM
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Pre 89 700R4's had a fatal flaw. Performance rebuilt 700R4's use cores post 89. I would try to find a core post 89 and have it rebuilt. The switch to a 350 will wreck your probably already bad gas mileage. A properly built 700R4 is a much better transmission than a 350 IMO.

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