[LT]

I would suggest going with a + 4* caster and 10* on the pinion. Set your axle up on a jig and get the correct measurements on your pinion angle and caster angle. If on the jig it is - 2* caster and + 4* on the pinion you will want to add *6 to the caster and 6* to the pinion for a total of + 12* on the knuckle. When you set the pinion angle up at + 10* your caster should be sitting right at + 4*.