HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech
Register Photo Gallery FAQ Community Calendar

Reply
 
Thread Tools Display Modes
Old 12-26-2024, 10:23 AM   #1
Charles Stewart
Member
 
Join Date: Jul 2016
Posts: 389
Likes: 1,655
Liked 753 Times in 213 Posts
Default 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,
Charles Stewart is offline   Reply With Quote
Old 12-26-2024, 10:40 AM   #2
Alan Roehrich
Veteran Member
 
Alan Roehrich's Avatar
 
Join Date: May 2006
Location: Murfreesboro TN
Posts: 5,098
Likes: 1,550
Liked 1,778 Times in 404 Posts
Default 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.
__________________
Alan Roehrich
212A G/S
Alan Roehrich is online now   Reply With Quote
Old 12-26-2024, 01:02 PM   #3
J.R. Haddad
Senior Member
 
Join Date: Jun 2012
Posts: 783
Likes: 930
Liked 1,462 Times in 307 Posts
Default 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.
J.R. Haddad is online now   Reply With Quote
Old 12-26-2024, 03:54 PM   #4
Charles Stewart
Member
 
Join Date: Jul 2016
Posts: 389
Likes: 1,655
Liked 753 Times in 213 Posts
Default 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,
Charles Stewart is offline   Reply With Quote
Liked
Old 12-27-2024, 12:15 AM   #5
GTX JOHN
VIP Member
 
Join Date: Jun 2009
Location: Boulder City, Nevada 89005
Posts: 2,725
Likes: 2,775
Liked 2,446 Times in 691 Posts
Default Re: TH350 question

They are now operating out of Waco Texas.
__________________
John Irving
741 Stock
741 Super Stock
GTX JOHN is offline   Reply With Quote
Old 12-27-2024, 09:31 AM   #6
rsalemi
Junior Member
 
Join Date: Dec 2003
Location: RI
Posts: 22
Likes: 0
Liked 21 Times in 9 Posts
Default 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.
rsalemi is offline   Reply With Quote
Old 12-27-2024, 02:00 PM   #7
Kevin Love
Member
 
Join Date: Jan 2002
Location: canada
Posts: 113
Likes: 5
Liked 19 Times in 10 Posts
Default 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
__________________
Kevin Love 5666 STK/SS
Kevin Love is offline   Reply With Quote
Liked
Old 12-27-2024, 08:15 PM   #8
Adger Smith
VIP Member
 
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
Default 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.
__________________
Adger Smith (Former SS)

Last edited by Adger Smith; 12-27-2024 at 08:17 PM. Reason: sp
Adger Smith is offline   Reply With Quote
Old 12-28-2024, 08:49 AM   #9
Kevin Panzino
Senior Member
 
Kevin Panzino's Avatar
 
Join Date: Oct 2002
Location: Pittsburgh
Posts: 574
Likes: 296
Liked 747 Times in 136 Posts
Default 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
Kevin Panzino is offline   Reply With Quote
Liked
Old 12-28-2024, 09:38 AM   #10
rsalemi
Junior Member
 
Join Date: Dec 2003
Location: RI
Posts: 22
Likes: 0
Liked 21 Times in 9 Posts
Default Re: TH350 question

Quote:
Originally Posted by Adger Smith View Post
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.
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.
rsalemi is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:13 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.