moser 12bolt

[Alky V6]

I was thinking that at first but the stock 8.5 has small week axle tubes & it seems you can only get a 30 spline posi for it!

I agree. When you put a Moser 12 bolt side by side to the stock housing, it's like comparing a 109 block to a Stage II block. No comparison.

 

[gnxtc2]

I was running a Moser 12 bolt in my car. I had no issues with it. IC was fine.

The issue that comes into is gear selection. If you ever plan on running a spool, locker, etc, etc and it's only available in a 4 series carrier, the numerically lower gear that is available is 3.73 which a special gear anyway. If you want to run 3.42s, you need to get a 3 series carrier.

Pic of the Moser 12 bolt
http://good-times.webshots.com/album/557703971hJSYJE

Billy T.
gnxtc2@aol.com

 

[chasmat2316]

I agree. When you put a Moser 12 bolt side by side to the stock housing, it's like comparing a 109 block to a Stage II block. No comparison.

Hey be nice - I have a 109 lol I have T/A block envy!

 

[northerngn]

I was thinking that at first but the stock 8.5 has small week axle tubes & it seems you can only get a 30 spline posi for it!

I have my tubes welded and supported and well as having 33 spline axle and a lightweight spool...waa waa waa i can hear it coming already...driving with a spool is no big deal....ill post pics

 

[Alky V6]

I believe Moser has 3 series spools available.

 

[chasmat2316]

I can't see how those rod ends & an alum girdle can keep the stock tubes from flexing?

 

[northerngn]

I can't see how those rod ends & an alum girdle can keep the stock tubes from flexing?

Do you make enough power to bend them?

 

[turboc87gn]

How fast do you have to go before all this becomes an issue? Welding the tubes etc...

 

[Alky V6]

I can't see how those rod ends & an alum girdle can keep the stock tubes from flexing?

It triangulates support of the tubes. The triangle is the strongest structure used in mechanical engineering. When you're looking to improve the strength of a structure, the first thing you look for is triangulation of the support of the structure. That's why, even with a 9 inch housing, you'll see these extra supports welded across the back of the housing which triangulates the housing and increases resistance to bending.
The Moser housing gains its extra strength through the increased size/thickness of the third member housing and the use of massive tubes. The welds of the tubes to the housing are top notch. In the welding world, joining steel to cast iron is a special skill. Moser has it down.

 

[Alky V6]

How fast do you have to go before all this becomes an issue? Welding the tubes etc...

Welding of the tubes is something that is important even for lower powered applications. I had a friend in high school who had a 66 Chevelle with a big block and manual transmission that twisted a tube on his stock 12 bolt housing. His car was maybe fast enough to do 13s or high 12s.
It was the shock of dumping the clutch at the launches that had the most to do with twisting the tube. And, that was street racing with street tires.

 

[chasmat2316]

Do you make enough power to bend them?

Yes

 

[chasmat2316]

The nine inch results in a radical IC placement for our G bodies. Results in a hard plant of the tire. Besides, seeing that beautiful Moser 12 bolt cover is more appealing to me than the rear of a 9 inch.
The 12 bolt also eats up less hp than the 9 inch. That is well known.

Donnie did you order your Moser stock with or narrowed, also what did you do for brakes? Thanx

 

[Alky V6]

Donnie did you order your Moser stock with or narrowed, also what did you do for brakes? Thanx

I ordered it stock width, and with the big Toreno Ford drum brakes. The car needed more braking power so I later upgraded to Wilwood Dynalite Pro Series, vented disc brakes. Made the difference I was looking for.

 

[chasmat2316]

I was running a Moser 12 bolt in my car. I had no issues with it. IC was fine.

The issue that comes into is gear selection. If you ever plan on running a spool, locker, etc, etc and it's only available in a 4 series carrier, the numerically lower gear that is available is 3.73 which a special gear anyway. If you want to run 3.42s, you need to get a 3 series carrier.

Pic of the Moser 12 bolt
http://good-times.webshots.com/album/557703971hJSYJE

Billy T.
gnxtc2@aol.com[/quote]

what made you switch over to a nine inch from the Moser 12 bolt?

 

[gnxtc2]

I needed a numerically lower pro gear to use with a spool. Plus there is so much more stuff available for a 9". I went with a Moser Fab 9".

Billy T.
gnxtc2@aol.com