I have a set of used JK Rubicon axles that I've started to strip and check straightness. After some research, looks like they come with 1.8 degrees pinion and 4.2 degrees caster. My TJ boasts 4.5" coils and I never measured pinion/caster angle to my stock TJ Dana 44's. While I strip the JK brackets off for a JK2TJ truss kit, is it worthwhile to correct caster by a cut & turn? If so, what should I be aiming for?