How hard would it be to throw a 700r4 from an 88 Iroc under my 74? Anyone know if instead of sliding my trans crossmember back if I can just find one out of an 84-87 w/700r4 from a boneyard that'll work better? Also, the driveshaft? Lengthened, shortened? The cables and stuff have been taken care of thanks to the COMPLETE setup from the Iroc. Thanks for any and all help!