That's what I thought. The LSD isn't really the problem, is it? I thought it was the ring/pinion gears or the bolts that hold everything together that usually blow up.

 

exactly. Its generally believed that the pinon fails first and when it goes, it pushes the diff & ring back, and that is what breaks the end caps and bends the bolts.

-Ry

 

So someone that has a set of 4.44 or 4.57 should have no prob with their diffs?

 

no I didn't say that.

Lowering the gear ratio could make the problem worse as you are not exerting more torque at the pinon. Don't drive like an asshat and launch at every stoplight and you will be fine. If you want a stronger diff you're gonna need to consider going to a larger one (like a 8" one)

 

Or maybe try and fit another diff in the rear?
There should be a way to custom some stuff and make these ones stronger.

 

If you mean a whole, larger pumpkin which includes diff, r&p and housing then yes, that is the only correct solution imo.

not gonna be easy. or cheap tho.

 

Damn rigth, but someone has to start doing something I guess. Cause punishing a rear is something I like to do. But don't wanna be changing rear ends like I change my underwear.

 

Like once every 6 months? Yuck. (j/k)

 

 

Busting the diff is an old story told by classic racers from the old school and shared by the new school racers. By making the diff stronger may impose another location of the drivetrain to take the brunt of the stress until "it" weakens and perhaps break.

If you're looking for a solution that allows you to side step the clutch at 8000 rpms all day, everyday, all year-round and not break anything... you get the idea. I feel that the solution should include balanced strengthening of all of the drivetrain components, starting at each of its weakest points. For example, I've seen a few cars with so much power to twist a driveshaft as thick as your leg into something that looks like a drill bit.

The Quaife may seem like a viable solution, however I feel that even if the Quaife ends up being a stronger diff, side-step drops/launches still produce the same amount of shock/stress to the drivetrain and may be putting stress in other areas, starting with the next weakest link. For the people who don't do launches/drops, I don't see any significant benefit from moving from the OEM Torsen to the Quaife unit.