Helical cut or Straight cut Diff Gears?

[mwry13]

Good luck finding some diffs that work... i work for Global Hobbies (aka xtm) and i dont know of any that will work because XTM's method for mounting the diffs is quite uncoventional... and you have no idea how many diffs ive seen blown up on those things... NIGHTMARES!

what oil are you running in the car for the diffs... i usually of course make sure the diffs are shimmed properly but also make sure on new diffs to recheck the shimming after a run or two because they do move a bit... I usually recomend 8-10k front diff oil with about 10-15 in the center and 3-5 in the rear.