[lincpimp]

By the lookd of the gear the pinion needs to be shimmed closer to the diff, and the diff needs to be shimmed so it pushes against the pinion more. When I build diffs I like them to feel a little "tight" they way they will wear in and not be slack. Just did a hpi bulletproof set in a gh savage bulk and they do feel a bit tight in places when you rotate them. I also use synthetic grease on those gears. Given the vay lst diffs are sealed, some gear oil or oil stabilizer could be used for lubrication. Keeping a thin layer of oil on the gears will cut down wear and drag alot. I wish the savage gears were sealed in a case like the lst...