Re: Ultramatic Question

Posted by Ross On 2014/8/1 15:58:51

I believe the 3/4 measurement was for the early valve bodies that were sand cast. I have only ever seen one of those. The 5/16 measurement was for all the later cars with the die cast valve body; I am sure that will solve your problem.

Bathtubs with Ultras are confined to Ultras from bathtubs because of the use of a splined output shaft for the slip joint unless your drivshaft has been converted and contains the slip joint within itself. That said, it is no problem to mix and match cases, bell housings, and much of the internals all the way up through mid 54. You could have any combination of internals by now.

Don't lose any sleep about how many clutch discs you have unless you regularly shift from L to H under load. The 10 pack will do just fine. Refrain from towing travel trailers or having the car fitted with a snow plow to earn winter income.