Has anyone tried this before?....if so how did it work out for you?

http://web.camaross.com/forums/showthread.php?t=486663

 

It sounds good, but it still has a 7.5 ring & pinion, which is just plain small. For all of the crap that he went through to do this I don't see that he gained anything over the 12 bolt as far as weight. The thick gear that he used with the 2 series differential case has to weigh as much as the 12 bolt gear. The braces that he attached to the back of the housing need to be at the ends of the axle tubes, not half way. I just think he should have kept the 12 bolt.

 

I see where your coming from but the main benefit is the small ring and pinion meaning less hp drivetrain loss...

 

I agree with big gear head. Sounds like he put alot of money into this 10 bolt and in my opinion its still not as strong as a 12 bolt. But, anything can be done with money, and that guy seems to have some of it so to each their own. If it was me though, i would have stuck with the 12 bolt.

 

The small ring & pinion is the thing that makes these rear end the weakest. You can add a spool and larger axles to eliminate the weak parts of the differential, but you can not increase the diameter of the ring gear, which is what makes this rear end weak. Anytime that you increase the diameter of the ring gear you make the gears stronger. The rotating mass has very little to do with HP loss in the rear end. I have built 9 inch Ford rear ends that had almost everything made of aluminum, the gears were machined to remove all excess weight and even the ring gear bolts were drilled hollow to make everything as light as possible. When finised it weighed less that half of what a stock 9 inch Ford weighs. It makes so little difference that it can't be measured. The only benifit is that it reduced the total weight of the car.