LOOKING AT AFTER MARKET 9" OR 12 BOLT. ANY PROS AND CONS? ARE THEY DELIVERED WITH THE RING AND PINION ALREADY SET UP? HOW QUIET DO THEY RUN ON THE STREET? ARE THEY VERY HARD TO INSTALL? LOSING DRIVEABILITY IS A HUGE CONCERN OF MINE, i LUST WANT TO BE ABLE TO RUN SOME STICKY A$$ TIRES AND DUMP THE CLUTCH AT 5 GRAND AND NOT HAVE TO WORRY ABOUT THE REAR END TAKING A CRAP!

 

I just got my Moser 9 inch installed by Morgan Motorsports. The center section had the spool and gears assembled. The axles weren't installed. I went with 35 spline axles, so, a posi was out of the question. Looking at me new rear end I don't see how in the world I can break it. It's BEEFY!

 

You pretty much asked the same ? I was going too. I am thinking about the 12bolt. I know that are rears are not made for slicks and after I put on the intake mods.( temp control sensor, MAF 85mm, and the Bellows ) it should be time to put on the slicks.
I already have the Y-pipe and exhaust along with the Lid and Holley filter. SO I guess it's time to step UP to the plate and get some NITTO 555r's
P.S. If I go with the 12 bolt I am going with the 3:73 gears. I Have the Manuel 6 with the 3:42 now