How do you ID a switch pitch torque converter? Just pulled out my Jet a way trans and I wanted to use the torque converter on the turbo 350. But i think someone put a regular torque converter in. I or the guy I got the car from had ever driven the car he was restoring it the torque converter looks brand new

 

Not all 300-series transmissions were switch-pitch.

A switch-pitch 300 converter will not work in a TH350 or a non-switch-pitch TH400. They'll work in switch-pitch TH400s, though.

I'd be looking at the trans stator support. The splined area is narrower on the switch-pitch than the regular trans. There are TH400 photos on the internet. Sorry, I don't have any photos.

 

I'm pretty sure that the trans was a switch pitch, it has the 2 plug connector on the side and it has the narrow splines on the input shaft, just wondering how to tell if the converter in a switch pitch. as the guy was fixing up the car i think he bought a new converter and i don't know if he bought a switch pitch or regular converter. he didn't finish the car, so i'm guessing he never drove it. i got it running but only pulled it in and out of the garage.

 

There are two sets of splines on the input shaft on all switch pitch transmissions.

 

He's asking about the converter

 

Same with the convertor, look inside the input, there are two female splined sections inside of one like a Turbo 350.