The TKO is longer and the tailshaft sits back further, so the crossmember needs to slide back, even then it's at the back of the slots, at least for me. Don't be suprised if you'll need to have the driveshaft shortened. You will also need to cut off the exaust hangers or move them back. I have a tubular K-member which has the option to move the motor further back and your damn straight the option will be taken, so I'll definatly need an inch or two cut off the driveshaft.