so the clutch grenaded... does that mean the gearbox is ok then ? Wonder why disc failed ?
Even a 16g @18psi seems 'tolerable' for the truck box (seeing as street 4g63 trucks gone hi to low 12s on slicks)

T56 conversion looks like a real pita with the machining & all..... vs a starion flywheel(pilot insert), 240mm clutch etc