the shackle laying back hitting the frame (isnt good which you know) will only make the caster BETTER if you fix the angle and dont shim the front the angle will be worst..
think of it as the farther foward the shaclkle is towards the front of the truck the more the axle rotates pussing the pinion down resulting is bad caster...shims should fix all that right up though
think of it as the farther foward the shaclkle is towards the front of the truck the more the axle rotates pussing the pinion down resulting is bad caster...shims should fix all that right up though


