Before you tear straight into a cut and turn, you'll want to put your rig on an alignment table to see where your caster is now, so you'll know how many degree more to add to the knuckles. I went with 6* because that's what vehicles similar in size/wheelbase/track came with from the factory. You may get lucky...I have read that some S2s came with enough caster to drive decently. You already have a one-in-a-million rust-free S2, You may have won the lottery in caster too :-D Side note: these trucks often have positive camber too. If you do end up doing a cat, this can be fixed at the same time.
Last edited: Sep 28, 2019