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Old 03-23-2023, 10:47 AM   #134
Thundarr
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Join Date: May 2013
Location: Coppell, Texas
Posts: 176
Re: Someone save this truck

Quote:
Originally Posted by Trio View Post


If your transmission shop is as good as the one I used, you won't be disappointed in the 700R4. Be sure to report back once you have both of them done, would love to hear an update on both options.
My GMC motor internals are in good shape; but, it is an older motor, so it really just needs the gearing and overdrive of the 700r4.
The Chevy is going to be a fresh build with a much more aggressive 383. So in line with 57taskforce's opinion, that TH400 is strong and will benefit from the fourth gear at highway speeds.

So different applications, but I expect both are right for each situation. The bigger issue is that all this is decimating my build fund that was intended for the Chevy only. But oh well, you can't take it with you.
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