I'm going to go into debt this winter and buy a Moser 12bolt with a 3.73 gear.

What is the deciding factor when you must go to 33 spline axles?

Right now I make just over 400 RWHP. Future plans will be either a bigger cube motor or a street turbo kit, HP goals are around 520 RWHP for either setup.

I don't drag race all that much, mostly a street driven car.

 

Why not get the S60?

 

Your kidding right? From what I read on here, it seems like it's more prone to whine while going down the road, plus it's too new for my blood.

 

I'm also going with a new rear here soon. I've done lotsa research over the last year and it's a no brainer really. DLS 9" bulletproof and dead quiet compared to the Moser 12 bolt.

 

Use this simple axle calculator from Moser
http://moserengineering.com/Pages/axletech.html

 

If I'm reading that calc right, I put in 600ftlbs, 2.66 first gear and 3.73 rear gear, I come up with 5357.

Should be fine with 30 spline since 1 axle can handle 6,200

 

The Moser $65.00 axle option when ordered with the Truetrac comes with a 10 year warranty on the axles. The warranty alone makes this a very attractive option. Bob

 

$65 isn't bad at all. What brands of rear gears are offered with the Moser 12bolt?

 

Bill,
Im using 31 spline and i bought this rearend used from Mike Brown.

 

Motive, US Gears and Richmond are all available from Moser. US Gear seems to be the favorite. They are a good strong gear and are generally quiet. Bob