Drivetrain swap HELP

[NewType72]

Originally Posted by Captainfab

I would judt rebuilt the 12 bolt, and install the 700R4. You can also use your original trans crossmember with the 700R4. You'll just have to move it back and drill some holes. Unless of course you just want a tubular crossmember, but you'll have to drill holes for that as well..

Well if I move the original trans crossmember back to drill holes will I run into a problem having the cab on? I plan on keeping the cab on as much as possible the bed I wouldnt mind lifting if needed but the cab would make things difficult. now I know the new 700R4 would be longer so would cutting my current driveline and re balancing it be the best option? or would ordering a new one to length be best? I just had my driveline blanced with new ends installed last year