No you don't.... it's a huge waste of money. Use fj-40/80 rotors on ifs hubs and put the caliper on the outside of the knuckle rather than the inside like stock.
I'm still running the same setup to this day. Same bolts, same calipers etc etc etc. not a single issue at all and I'm running 42's now and it still works great...
http://board.marlincrawler.com/index.php?topic=7449.0
can you run FJ60 rotors or not? because I already have brand new fj60 rotors
