If you plan to get serious off road the TJ's coil spring suspension is far superior.
I have a YJ with a 3 1/2" lift and 33's and I like it fine but i dont do any serious 4 wheeling. Mostly just the trails to my favorite fishing holes. It wont touch what a well equiped TJ will do.
To run 35's you willl need 4 to 4 1/2 inches of lift. Best option is to buy a good quality suspension lift but with that much lift you will need to add a transfer case lowering kit and a slip yoke eliminator kit to keep your rear driveshaft angles in check.
If you want to do it a little cheaper go with a 3 1/2" suspension lift and a 1" body lift. You will still need to do the t-case lowering, which is cheap, but you wont have to do the expensive slip yoke eliminator.
Some good sources for parts and info are...
www.4wd.com
www.quadratech.com
Best of luck with it!
