I am wanting to put a moser spool and 30 spline axles in my stock gm 7.5 10 bolt.

Is this a good idea considering i dont have the cash for a 12 bolt, and the stock posi wont hold much hp.

If i uderstand stock rearends,
7 out of 10 break the posi,
1 out of 10 break the teath off the gears
2 out of 10 break axles

So if i upgrade the axles to moser 30 spline and repalce the posi with a spool, then my rearend should last somewhat longer, right??

I only have 320 hpN/A(470 NX) but i am wanting to pull low 1.6 60fts. A friend of mine blew his rearend out the week after he pulled three 1.6 60 ft with nitrous. I dont want my rearend to blow in dallas, on a good track, 5 hours from home.

Is this setup stronger than stock 4.11's with a gm posi??

 

I you are driving the car 5h to the track, I don't think you really want a spool in there anyway.

Rich

 

Is it stronger than stock?? It doesn't bother me that it is a spool

 

As long as the 5 hour drive to the track and back is a straight line, then a spool will work out fine. Yes it's stronger. But if you have to turn or drive on slick roads, it will drive like crap. Do a search and you'll know what i'm talking about.

Ken

 

I have broken about 8 rear ends.. only one was the posi.. ever since its been the teeth right off the pinion.. good luck

 

the posi is not the weakest link its the small diameter ring and pinion,there is no way around that im afraid.If you did install the posi and axles you would undoubtedly pop the top off the pinion or rip teeth off the gears with low 1.6's