I've been going through my RPO codes, and it turns out that my Cutlass has a THM250-C. I understand that it is a THM-350 without the intermediate clutch pack and with a band adjuster. I'm just wondering if it is any good. Is there anyone here who has experienced this THM-350 variant that I previously hadn't heard of? Thanks.
It's been a few years like decades but I think you are correct. Good? Good for money at the scrappers....
Some shops are building them for drag racers because they're lighter.
Honestly, if it's already out, a TH-350 will probably fit in the hole.
If it's still in the car, drive it until it's shot, then change it.
I got 60,000 miles of autocross and hooning out of the one in my 82 Camaro. A TH350 with the short output shaft is a direct bolt in, but low gear is much taller, so you lose bottom end acceleration.
Drive it till it blows. Save your money for a 200-4r swap.
Where did my response from this am go? Back in the day's of "F TYPE" auto trans lube it was common to add a qt of 10/30
Wally wrote: Drive it till it blows. Save your money for a 200-4r swap.
yes, this
200-4r it is!
Save your money for a Super T-10 swap. 
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