th400

PittSpeed Automotive
1

hey guys,

haven’t been on in awhile, trans am is running great but, i’m havin a tranny issue…

i’m hoping i don’t need a new tranny, but, who knows…

alright here’s what it does… in drive, speed increases, but wont shift outta 1st, and when it reaches ~45 mph (roughly 4700 rpm) it starts to slip…i’m not sure if that a fault in the tranny, or maybe an issue with the stall converter, or some vacuum piece on the tranny that regulates when the tranny shifts…

i was told by someone that there is a part on the tranny that runs off vacuum the helps/tells the tranny shift…if anyone knows the name of that part i’d be 20bucks away from fixing it, or i’d need to get a new tranny…either way, i’d like someone to point me in the right direction…

thanks for any kinda help i can get

2

modulator

3

hey i got a tranny for you if you want it. its a 76 th400 with 50k on its yours if you haul it. it came from a 455 buick electra

4

word quik,

give me after the weekend to figure out what it is, and i’ll get in touch with you about that,

can you vouch for the tranny? came outta a running car and everything? no problem at all?

Thanks

5

went out today and bought the modulator valve, and some motor mounts, aiming for saturday, maybe, if things go right…i’ll be behind the wheel of a real car again…