Sffd103

iTrader: (16)

Sorry for your damage!

KillaIS250

iTrader: (1)

Damn first i ever heard of that happening on an IS. Try and find a used one from a junkyard or something though, if your doing labor yourself, it will be much more cost effective.

HtownImprt

iTrader: (2)

I've tried to stay within the diameter on my old setup but got a set of 19" G35 Rays, the two rear tires were different profiles, 35 and 40, didn't know how i missed that, but thats over an inch difference, could it be the cause?

laobo979

iTrader: (5)

Could be cant run 19s with 40 series it threw it way off. But here a link to a salvage awd hit them up
http://cgi.ebay.com/ebaymotors/06-07...#ht_1013wt_722

HtownImprt

iTrader: (2)

^^^already did thanks, $350 isnt a bad deal, was hoping the damage wasn't so bad, was planning on keeping the car but I guess it wasn't meant to be....

well i just removed the Differential, that thing looks like a mess on the inside, definitely wasn't repairable

HaveBlue

Wow busted pinion. Make sure the replacement has the same gear ratio. 250s and 350s might not be the same.

jnguyen87

iTrader: (2)

Im almost postive thats what happened. When i was running experimental tire sizes, the vibrations just felt un-natural. So i knew i had to change back to the usual sizes right away. Fortunately nothing happened to my differential, as far as i know. I know i ran those experimental tire sizes longer then i should have too, but so far its ok.

B16da9

iTrader: (7)

You are correct, I'm so used to how most RWD vehicles use bolts. Those pop out like on a Honda.

FutureITR

It's most likely your staggered wheels causing the problem.