3000 stall is pretty high...

Your tranny went because of a bad tune, not because it was weak and you were overpowering it with a non I/C roush.

 

I agree, the stock roush tune was WAYYYY to kickdown happy

 

my stock tranny went within 27000 miles after i installed the s/c. yeah the downshifting was ridiculous, id barely touch the gas in OD in the highway an it went into 3rd. troyers tunes helped alot even though i still have a few shifting issues that ive learned to work around. so far this rebuilt tranny has lasted me around 40000 miles... i still have a 06 tranny with only 6000 miles on it sitting in my carport just in case...