Muncie tail housing broken

[LS6M22410]

Hello Mitch..

I have now had this exact thing happen to me 2 consecutive times at the track. My car is an original LS6 with M22 that I am tinkering with for participating in Pure Stock events.. You may of seen it at SCR last year.

1st time I just figured it was old aluminum that fatigued. Found another 3978764 Tail housing, Had the entire thing gone thru and installed a billet mid plate while it was apart.. There was no signs of DS impact to the seal or any other witness marks that would indicate an alternate reason for the failure.

So put it back together an took it for about a 8 mile drive (drove perfect), went to the track last night and Same Exact thing happened again on my second pass and right after the 1/8 shifting into 3rd it broke.

Take in mind I am running on F70 polyglas tires with 2.0-2.3 60's. Curious to know if you got a chance to investigate yours any further and found the potential root cause.

Thanks, Dave