i'm planning on installing a turbo 350 and a jegster crossmemeber for it into my 1986 Monte Carlo SS.it has the 200r4(or 2004r) in it right now and the 305ho,but i'm also changing to a 355.some my question is..........do i need a different shaft using the aftermarket crossmemeber and the turbo350?? someoe told me i didnt.i want to double check befor ei go do this and find out i fuc*ed up.lol