I believe it was stock 1st gear. Just put it in last week from a buddie of mine in tenn. I was running a 90 in there for last 2 yrs.
Fusion HRI tires at 24 psi.
When I dumped clutch I had some wheel hop let out of gas for a split sec hammered it down shifted into 2nd which didn't feel right, let off of gas down the track and could hear the teeth rattling around. By the time I got back to trailer there was fluid coming out a hole from a tooh that wanted freedom from the case.