Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

9" Case Size

Thread Tools
 
Search this Thread
 
Old Jul 2, 2010 | 08:50 AM
  #1  
WS.666's Avatar
Thread Starter
TECH Regular
iTrader: (28)
 
Joined: Oct 2008
Posts: 483
Likes: 1
From: Laurel, Maryland
Default 9" Case Size

Hey,

I'm rebuilding my 9" rear and I need to know the case size for f-bodies so I can order the correct rebuild kit. Are they all a standard 3" (3.062") case?

While I'm ordering stuff from Moser, do you guys think I should ditch my Detroit Locker (which is unknown whether it is damaged at the moment or not), and get a Wavetrac differential. I will be ordering a new differential and gears from Moser, since I don't know what is damaged in my rear end right now (except maybe the axles).

Thanks.
Reply
Old Jul 2, 2010 | 09:07 AM
  #2  
1320's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2001
Posts: 1,114
Likes: 0
From: LV NV
Default

There is no "case size" for f bodies. Chances are its a 3.06 though....but it could be different. 2.89, 3.25 or 3.80(I think). The big 3.8 case is for 40 spline axles. You can squeeze in MW 40 splines in a 3.25 I think. (they advertise thatI think)

But most are 3.06 and some are 2.89 and both can carry 28,31 or 33 spline axles I think.

Id go with a spool.
Reply
Old Jul 2, 2010 | 09:26 AM
  #3  
WS.666's Avatar
Thread Starter
TECH Regular
iTrader: (28)
 
Joined: Oct 2008
Posts: 483
Likes: 1
From: Laurel, Maryland
Default

I have 35 spline axles...
Reply
Old Jul 2, 2010 | 10:03 AM
  #4  
1320's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2001
Posts: 1,114
Likes: 0
From: LV NV
Default

I ve never had 35's myself, (always gone to 40's) its impossible to be a 2.89 then....
Your pulling the chunk anyways right?

Its undoubtably 3.06 but it could be a 3.25.....in a very very off chance.
Reply
Old Jul 2, 2010 | 11:10 AM
  #5  
jmm98LS1's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (28)
 
Joined: Feb 2005
Posts: 3,975
Likes: 3
From: KS
Default

If you've got 35 spline axles, you've likely got a 3.25" case. There are only a couple manufacturers that make diffs that allow you to fit 35 spline axles in a 3.062 case so it's possible, but otherwise 35 spline = 3.25" case.
Reply




All times are GMT -5. The time now is 12:36 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