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

Overdrive for th350?

Thread Tools
 
Search this Thread
 
Old Dec 25, 2009 | 12:05 PM
  #1  
allenwesley's Avatar
Thread Starter
12 Second Club
 
Joined: Mar 2009
Posts: 196
Likes: 0
From: deer park (houston area)
Default Overdrive for th350?

hea guys i have a th350 in my car and i would like it to be more street able... i had to go back down to 323 gears and i would like to go up to 342 at least and would like to be able to cruse at least at 60 on the free way... now my question is that do they make an attachment to the th350 to give it an overdrive? i have heard off this from someone that i worked with and i would like to know what the attachment is called and how much it would cost to buy one if there is even something like this available...
Reply
Old Dec 25, 2009 | 04:04 PM
  #2  
oldguy99Z's Avatar
11 Second Club
iTrader: (2)
 
Joined: Dec 2005
Posts: 128
Likes: 0
From: Lititz,Pa.
Default

Yes something is available -from Gear Vendors.Look them up.They are not cheap though.There may be other units I don't know.
Reply
Old Dec 26, 2009 | 02:26 PM
  #3  
382ssz28's Avatar
11 Second Club
iTrader: (24)
 
Joined: Dec 2007
Posts: 638
Likes: 0
From: N Canto, Ohio
Default

It's alot less expensive to install 28" tall tires. You could run 3.73's without any problems. Your 3.42's will be perfect. I sell Gear Vendors. They work well, but have issues like expense, modifying floors, etc. 300-500.00 in tires or 2500-3000.00 in a GV + mods. It's all we had in the 70's, and it worked.
Reply
Old Dec 26, 2009 | 04:10 PM
  #4  
Paul57's Avatar
TECH Resident
 
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
Default

Are you opposed to a 200-4R??? Your stock driveshaft "may" work but you would need a new converter. http://www.extremeautomatics.com/tra...ons/2004r.html
Reply
Old Dec 27, 2009 | 07:49 PM
  #5  
allenwesley's Avatar
Thread Starter
12 Second Club
 
Joined: Mar 2009
Posts: 196
Likes: 0
From: deer park (houston area)
Default

thanks for all the help guys I’m going to check the tire height first then i will go from their...
Reply




All times are GMT -5. The time now is 08:49 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE