I have been asked to extend the wheel base as much as possible for a friend. He has a Tom Woods driveshaft with his SYE out back but the standard driveshaft up front. I will be fitting adjustable arms top and bottom and he has a 4" lift. What worries me apart from wheel well clearance is the amount of engagement the slip yoke should have and dont want to go too far. As you know I like to be certain I am doing the right thing before jumping in there and doing something. The shock lenght will matter too but only know he is running Rancho RSX9000's to suit the 4" lift with dropped bumpstops to suit! He also runs disconnects.