Thread: Pasture Find!..How to identify a true 63 Catalina 421 Super Duty?
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Old 10-10-2023, 08:08 AM
Keith Seymore's Avatar
Keith Seymore Keith Seymore is offline
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Quote:
Originally Posted by denaliakitas View Post
What automatic transmission would have came in this car? Original is missing and would like to start to hunt for a replacement. Thanks
Quote:
Originally Posted by 63 Pontiac View Post
The slim Jim is the automatic used in 1963. You don't want one those.
This, this, thisity this this!

You'd want to find a THM400 and stick in there.

Or maybe an overdrive auto depending on your intended usage.

K

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Last edited by Keith Seymore; 10-10-2023 at 08:28 AM.
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