1. Nobody's gonna buy a GsR tranny for 900-1100
2. GsR gears are WAY too fucking short, and ITR i cant even describe how fucking short they are...in my gsr tranny on highway in 5th gear...80mph=4k rpm.....redictulous,
3. If u goin all motor and YOU like short gears then ITR it is......if u like Long gears then i suggest getting a LS....or a ITR with ls 5th gear...and put the lsd in w/e u get..i like short gears but i hate them on the highway when you trynna cruise and yo ass revvin up like a bike, lol.
4. The lsd is wonderful!!! and i got a GOOD GsR tranny for $350 a while back! not that YOU gonna find one for that price, but they only sell for like 550 normally and in GOOD condition you will never get 900-1100 for it......

Are u going all motor or boost?