Not sure if the KAAZ is broke. I didn't have a brace. Am considering buying a mazdaspeed lsd right now...just in case...

 

Just paid $450 for this

 

Good job fastrx7man. Pretty smokin deal.

R.K.

 

looks like your set...do u launch at high RPM's? did you hear noises that couldve hinted you at this cause mine was makin noises(b4 it broke down)...

 

That sucks, you shouldnt drive the car till u get that fixed lol, just messing around. It could have been worse. But anyway nice 1

 

No, I think thats about as bad as it gets concerning the rearend.

 

My bad meant all in all.

 

I'm curious at what rpms you were coming out at to do that to a Kaaz.

 

It was the differential case that broke, not the Kaaz differential.

 

Is that also a broken lateral brace I see?

 

Man looking at that pic makes me cringe, sorry to hear about diff problems...guess those 11 sec runs took a toll

 

mine did that too. it seems as though the ppf is trying to go up, and the diff is wanting to go down. eventually something has to give. i'd still like to know who thought up the ppf

 

Actually, the front of the differential is trying to go up (in the opposite direction of the rotation of the ring gear) and the PPF is designed to help resist that.

With good traction on slicks and a high rpm launch, the pinion gear tries to climb the ring gear upward because it can't turn the tires immediately and translate the power into motion. The result is a huge amount of stress on the nose of the differential, because the PPF keeps that from happening.

You are right that eventually something has to give. Do enough drag launches with enough power and you'll eventually find the weakest link in the drivetrain the hard way.

Mazda?

 

So, Did you finally get the diff? Did you install it? Does it fit, work, etc.?

 

Installed 2 weeks ago. Mazdaspeed LSD. I had to go back to 4.10 gears. Made by best pass thus far with the new setup. Went 11.14 @ 121.46.

 

ouch...

 

At what RPM caused that damage coming out of the hole?

 

its exposed for cooling right?

 

Do you have one of keith's diff braces?

 

ive done that same thing to two of them

my case cracked 100% all the way around and like fell apart, it was funny

one was on the street with 285 potenzas just ******* around, the other at the track with et streets...luckly the case didnt break at the track, just the spyder gears stripped out

that was within a span of 2 weeks too lol
piccked up a new TII diff, well see how that holds next season

 

Mine happended because the ring gear was not properly torqued to the diff. I am still dealing with my mechanic who installed it. I am looking for a full refund. It wasn't done by MZM, it was done by a local shop in San Antonio.

 

What shop could that be????