Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

4l60 to Th350/400

Thread Tools
 
Search this Thread
 
Old May 25, 2008 | 04:23 PM
  #1  
Skidd's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Feb 2007
Posts: 186
Likes: 0
From: NW Arkansas
Default 4l60 to Th350/400

Well Im tire of the 4l60 not wanting to make the shifts and I plan on swapping to a 350 or 400.

But after looking around Im not finding all the info I want for a lt1 car, lost of ls1 stuff. I know I will have to have all the auto tuning changed.

What lenght of driveshafts for the different length tailshafts for each tranny?
Will the stock cross member work or should I just buy the umi or bmr one?
Speed sensor still work or swich?
I probably have the local chassis/fab shop build a TA.
Reply
Old May 25, 2008 | 05:57 PM
  #2  
UMI Performance's Avatar
FormerVendor
iTrader: (77)
 
Joined: Apr 2004
Posts: 5,473
Likes: 7
From: Philipsburg, Pa
Default

Originally Posted by Skidd
Will the stock cross member work or should I just buy the umi or bmr one?
The stock crossmember will not work but we can help with that. We have just the crossmember or we also make the crossmember with a integrated torque arm mount. We now have them available for all 93-02 cars for a TH400 or TH350.. if you don't see it on our site send me a PM

Thanks!
Ryan
Reply
Old May 26, 2008 | 12:48 AM
  #3  
One Bad Z's Avatar
11 Second Club
iTrader: (1)
 
Joined: Jun 2004
Posts: 655
Likes: 0
From: In a van down by the river, Missouri
Default

My th350 was setup to use the stock driveshaft however when i changed over to 1350 u-joints and yokes i had to get a driveshaft made. Just something else to think about. The stock shifter will work but i would look into replacing it eventually. When racing it's harder to tell what gear you're in and it's easy to overshift a gear with the stock shifter.

Go with UMI hands down. Besides the parts that the previous owner had put on my car all I buy is UMI and have zero complaints.
Reply
Old May 26, 2008 | 07:03 AM
  #4  
Z28/2002's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2005
Posts: 6,799
Likes: 5
From: Your girl's back door giving her the long stroke while you're at work
Default

I've got a UMI TH350 crossmember(without TA mount) in my CETA and it is a very nice piece. Highly recommend you hit them up
Reply
Old May 26, 2008 | 09:21 AM
  #5  
Skidd's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Feb 2007
Posts: 186
Likes: 0
From: NW Arkansas
Default

So I could go with the crossmember with the integraded mount and get the 2205 TA.
Reply
Old May 26, 2008 | 10:49 AM
  #6  
UMI Performance's Avatar
FormerVendor
iTrader: (77)
 
Joined: Apr 2004
Posts: 5,473
Likes: 7
From: Philipsburg, Pa
Default

Originally Posted by Skidd
So I could go with the crossmember with the integraded mount and get the 2205 TA.
Yes, this set-up will work together just fine and is what I ran on my last TH400 swap.

If you have any questions please ask.

Thank you!
Ryan
Reply




All times are GMT -5. The time now is 07:25 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE