Re: An Ultramatic experiment

Posted by 55PackardGuy On 2010/4/10 22:06:57
Quote:

randy berger wrote:
Guy, the whole idea behind the Ultramatic was smooth shifting. You're not supposed to notice the shifts and my 400 operates that way. You can tell by the pitch of the motor that you've shifted(if that's the right word) into direct drive. The tranny is working as designed. Packard's engineers were working on that smoothness and that is why it is designed as it is.


No question about that here, just some observations that different companies sought different qualities in their automatics, and hence it's subjective what is a "good" trait or a "bad" one, particularly regarding shifting. Some folks like more positive shifts, even in a luxury car.

It comes down to driver preference what would be considered "the worst" shifting characteristics. Heck, the last of the big Cadillac Brougham models locked up at about 30 mph. That was a gas mileage thing, more than likely. It sure wasn't a driveability consideration!

Some characteristics are almost always bad in the mind of almost any driver, such as shift points that rob acceleration, or those "overlapping" shifts (never experienced that) and ways to modify them out of a trans have a lot of general appeal. Good to know someone is willing to share their experiences.

So, some more tweaks for the T-U please.

This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=50942