New rear end
Thread Starter
Teching In
Joined: Jan 2019
Posts: 37
Likes: 0
From: Chicago, IL
New rear end Hi I'm looking to replace my factory 10 bolt with a 12 bolt or a 9" rear end.
I will be looking at ratios around 3.90, and I also need the rear end to be strong.
Is there a brand or a website that people here have good experience with?
What has been reliable for people?
I will be looking at ratios around 3.90, and I also need the rear end to be strong.
Is there a brand or a website that people here have good experience with?
What has been reliable for people?
TECH Fanatic
Joined: Nov 2011
Posts: 1,367
Likes: 144
From: Woodstock, GA
TECH Regular
Joined: Sep 2008
Posts: 404
Likes: 24
From: Houston
Either an S60 or a 9". See: https://ls1tech.com/forums/gears-axl...m9-street.html. I read and read and went with an MWC fab 9 with 3.89 gears. Very strong, especially with back brace and 35 spline axles, plus the fitment advantages in that thread, plus MWC has all the rest of the rear suspension parts designed to work all together with their fab 9. Downside is it can take several months to get it and the gears are noisy but I am overall satisfied thus far. You should be able to get the S60 sooner. Other options are 8.8 or 12 bolt. I haven't run either but after reading and reading I was not comfortable with using either of these on a torque arm F body.
Thread Starter
Teching In
Joined: Jan 2019
Posts: 37
Likes: 0
From: Chicago, IL
Either an S60 or a 9". See: https://ls1tech.com/forums/gears-axl...m9-street.html. I read and read and went with an MWC fab 9 with 3.89 gears. Very strong, especially with back brace and 35 spline axles, plus the fitment advantages in that thread, plus MWC has all the rest of the rear suspension parts designed to work all together with their fab 9. Downside is it can take several months to get it and the gears are noisy but I am overall satisfied thus far. You should be able to get the S60 sooner. Other options are 8.8 or 12 bolt. I haven't run either but after reading and reading I was not comfortable with using either of these on a torque arm F body.
11 Second Club
Joined: Jan 2003
Posts: 1,000
Likes: 134
Nothing at all wrong with an S60 other than if you want to change gear ratio and want to pay a workshop to do it, you either have to give them the car or remove the whole rear axle. With a 9" you can remove axles then unbolt only the center section and take that to get a gear swap.
Thread Starter
Teching In
Joined: Jan 2019
Posts: 37
Likes: 0
From: Chicago, IL
Nothing at all wrong with an S60 other than if you want to change gear ratio and want to pay a workshop to do it, you either have to give them the car or remove the whole rear axle. With a 9" you can remove axles then unbolt only the center section and take that to get a gear swap.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
My first question would be how much power are you making and what transmission do you have because anything over 450 to 500 horsepower i would stay away from the 12-bolt my next question would be do you have a budget in mind and if so i would consider the S60 bang for the buck you can not beat it and you will never break it. Give us a call and we can go over all the options and answer any questions you might have.
Thread Starter
Teching In
Joined: Jan 2019
Posts: 37
Likes: 0
From: Chicago, IL
Thread Starter
Teching In
Joined: Jan 2019
Posts: 37
Likes: 0
From: Chicago, IL
My first question would be how much power are you making and what transmission do you have because anything over 450 to 500 horsepower i would stay away from the 12-bolt my next question would be do you have a budget in mind and if so i would consider the S60 bang for the buck you can not beat it and you will never break it. Give us a call and we can go over all the options and answer any questions you might have.