Re: Ultramatic gearbox

Posted by Ross On 2023/8/23 6:54:23

To your question, the later valve bodies had the simplified pump check valves instead of the sometimes noisy pump selector valve, and it did have the modification mentioned that made it more pleasant to shift from low to high.

It really is not a problem to shift from low to high, or high to low while driving in the mountains; merely let off the gas a bit.

If your valve body is still a problem I can send you one easily when a friend of mine returns to Germany in late September.

On a historical note, one can understand why Packard, Studebaker, Buick, and later everyone decided to use torque convertors if one spends time with an early Hydramatic. Yes they are snappy off the line, but they are also annoying--engine speed is always rising and falling noticeably especially upon takeoff.