TH350 question
 

With my eternal quest for knowledge, I saw (in recent video from Mr. Fazio) that it's possible to have a TH350 with some Mopar much lighter internals parts inside.
It's still a secret or somebody here can share some info or maybe more details on this subject?
Thanks,

Re: TH350 question
 

A couple of companies build light weight internal stuff for the TH350. ProTrans I believe is the one using the Chrysler pieces. I'd ask around about them, see who owns their stuff. Coan makes an XLT package. I always used the ATI aluminum pieces, with a TH250C shell and output shaft.

Re: TH350 question
 

Pro Trans does in fact use Mopar pieces in their 350 TH Trans. I have one
and it has been fast and flawless. I don't know how it came about, if the
Smith family already had had all the Chrysler pieces, as originally they
only built Mopar transmissions, and they were an easy retro-fit to the 350 case,
or if the GM pieces were so heavy that it was worth getting the Mopar
pieces to fit, or a combination of both. Opening one of their transmissions
is like opening up a work of Art. Absolutely beautiful work inside.

J.R.

Re: TH350 question
 

Thanks Mr. Alan Roehrich and Mr. J.R. Haddad for those information.
This will help me a lot more that you may think...
Keep on,

Re: TH350 question
 

They are now operating out of Waco Texas.

Re: TH350 question
 

AMC in 80's used the Chrysler 904 trans with a chevy bolt pattern behind the GM 4 cylinder. Bolts right up to a chevy V8 block and all the internals are 904. They also used a 2.74 low gear instead of the 2.45 standard.

Re: TH350 question
 

Pro trans also did a Ford C-6 with 904 internals . It was the desired piece until NHRA allowed the C4 to be used in all Fords

Re: TH350 question
 

rsalami,
How do you tell the Mail truck transmissions that have the 2.74 low gear from the mail truck transmissions that have 2.45 with out disassembling.
I have 2 of those mail truck transmissions with converters and on the outside they look identical to me.

Re: TH350 question
 

Yep, pro trans out of Waco Texas. They are based on the mopar design, but are all scratch built cnc components. And yes, to say it?s a work of art is an understatement. Just absolutely stunning. Brilliant design and execution.

Kp

Re: TH350 question
 

I bought the 904's out of 4 cyl AMC Sprit and concords - as far as I know all the 4 cyls had the 2.74 gearset. I bought a couple for $100 each from parts yards. everything else in the trans is identical. there is no difference in the case.