Need a TH 400 guru...

[3macs1]

Hi Tom:
You probally have changed a hundred of these but just to be sure when you get the governor out pin the moving parts with your fingers and turn the unit up and down several times to make sure the barrel valve inside moves back and forth freely if not you are going to have to take the pin out and clean it.I would be suprised if a vintage governor will fix this. Usually you need a lighter spring set up to get that later shift etc you are looking for.They may have to be ordered special.Good LucK

[EZ Nova]

Wilma, if you try this site and as "HUTCH" from Hutch's transmissions, I'm sure he'll get you what you need. Johns VERY helpful to all, not just HIS customers.

http://www.yellowbullet.com/forum/forumdisplay.php?f=30

Hope this helps, John

[3macs1]

If it still does not work right after all of that Wilma time for a M22.

[WILMASBOYL78]

What a difference one part can make I changed the governor tonite...installed a vintage NOS hi-perf unit from an L78 setup..and WOW..!! The gov. that was in there had big weights and very tight springs...the hi-perf unit was "loose"...this simple correction made a huge difference. It now kicks down at highway speed(55mph)and holds until 6,000rpm's and then bang...the tries chirp and your in drive. Gonna do a little more tweaking with the vacuum modulator to see how adjustments impact the shift points...but it is real close to being on the money. Next step is a little better converter(3,000 from ATI) and a deep sump pan and trans temp gauge...after 3 years of messing around this car is starting to really be fun...by the way: we recently had the Holley carb and distibutor for this car reworked by Eric Jackson...first rate job as always Thanks for all the input...

wilma

ps: if you are looking at governers, the hi-perf ones I have are stamped with the numbers 23 on the top.