Thread: Auto Transmissions to work with 2.56 gears
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Old 09-20-2019, 05:45 PM
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surfsama surfsama is offline
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Originally Posted by 1stGenFB View Post
It has a TH350 trans in it now that leaks like crazy. I know from experience how weak the TH350 is
I had a TH350 in a 1/2 ton van that was anything but weak and I believe ta_man here on this site went 10 sec with one for awhile.

The TH350 2.52 vs a TH400 2.48 first gear also compliments the 2:56 a little better. No doubt the TH400 is stouter but it's also heavier and longer so you'll have to find a different driveshaft or shorten the one you have.

If you're not interested in overdrives and the engine is stock/cruiser car a TH350 from a reputable builder is the easiest path. Otherwise you can't really go wrong with a TH400.

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Last edited by surfsama; 09-20-2019 at 05:53 PM.
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