1951 Ultramatic Delayed Engagement When Warm

Posted by kunzea on 2022/6/22 21:33:11
My transmission and rear end have been rebuilt. Prior to driving (cool), the transmission will immediately engage when shifted into drive, low and reverse. After driving (warm) there is a delay in engagement until the RPM is brought up slightly. The trans has a full synthetic ATF in it.

What ATF should be used? Any other suggestions?

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