OK, mods are in my sig and I will be spraying here soon. My car is not my DD but I do like to drive it so it still gets miles put on it. I also like to go to the track so it needs to be strong and reliable. I know we have several vendors just here on the site and Im curious as to what you would go with and why. This is a big purchase and I dont want to regret what I purchased. Would you go spool or non spool. 4.10s? 3.90's...(m6). What set up is good for street and strip? Im still learning about rears so I really dont know a ton. I just want a good rear that wont give me any problems and can handle some power.

 

Put a 12 bolt into a early Chevelle, Nova, Camaro, etc and you can beat the crap out of it, and not hurt anything. Put one into one of our cars with a torque arm, make a couple 4000 to 5000 dragstrip launches, and I can just about guarantee you'll pick up gear noise. If it is a drag only car, you'll never know or care about the gear noise. Drive your car home from the track, and the noise will drive you nuts. I feel the torque arm stresses the 12 bolt housing, causing distortion. We have never seen this happen with the 9 inch housing.

Exotic Performance Plus strongly recommends the Moser nine inch. This rear is even tougher than the Moser 12 bolt, and the horsepower of the late model F Body cars keeps escalating every year, which requires a very strong rear. With the recent introduction of the 6.2L GM aluminum block and the excellent flowing 6.2 litre heads, the horsepower of these cars is going to just keep climbing at a very fast pace.The nine inch will handle the power, plus we prefer the way the torque arm is bolted to the nine inch in the same way the oem rear-end is attached. (This is the only good thing about the stock 10 bolt...) The Moser 12 bolt uses four short bolts to attach the torque arm, and they have a habit of loosening up, even when loc-tite is used. Why the nine inch is stronger than the 12 bolt. The 9-inch has an internal rear-pinion support that also supports the gear end of the pinion to limit gear deflection under high torque loads. This seems to be the major reason why the 9 inch doesn't start whining after high rpm clutch dumps, when the 12 bolt will pick up noise.The 9-inch locates its pinion gear lower on the ring gear to improve tooth contact, than the 12 bolt does.The 9-inch has a 0.125-inch larger ring-gear diameter and internal pinion support than the 12 bolt does. This is not much of a difference, but it is worth noting.

If you are planning on pushing over 600 rwhp, I would go with a spool.

http://www.exoticperformanceplus.com....html?item=145
Moser 9 inch with a Truetrac.

http://www.exoticperformanceplus.com....html?item=148
Moser 9 inch with a spool. Bob

 

Doyou guys give a warranty with the rears? If one was to have to drive their car alot with these rears is it ok? I dont plan on being over 600, high 500's with the spray but I dont plan on being much higher then that for awhile. If down the road I wanted to be full spool, is that hard to change. Thanks...

 

If something is immediately wrong with the rear, then it is covered. Down the road, if there was a blatent defect, then it would be covered, but that is about it. These rear are tough as hell, but you never know what someone may do to them. Moser is not going to guarantee they will hold up to what Burt Reynolds movies use to subject 2nd gens to.
Swapping to a spool down the road is possible. Thanks! Bob

 

Thanks for the reply Bob, yeah Im not planning on beating the hell out of it thinking oh I'll be ok, it will be fixed. Ofcourse I do plan on going to the track and doing some decent launches on it, thats the whole point of having a built rear. Sounds like you guys have a good product.

 

Thanks. The Moser 9 inch is a very good way to go, and we have sold a ton of them. Bob

 

one more thing, do you guys offer and kind of package deal if one was to get a driveshaft aswell. Oh...any small military hook ups?