I have a 9x11 billet lockup in my GN and a PTC 2800 10inch in my T. I like both Gn has TE60 and T 6157 both spool instant with slics. PTC is looser around town. 9x11 passes as a D5 with street manner until you hit it. GN went 12.15@109 2 yrs ago with old combo. T has never been to the track. Had a premature lock up clutch or seal failure but Dusty fixed it an I have more miles on it now than before it failed.