You could probably go as far as saying Shannon's IFS doesn't look like anyone's on the planet. My comment was based more on principal.
Rules for Class A:
- Any axle swap is ok as long as it maintains stock suspension symmetry. So if it is IFS, you can't swap in a solid axle. If it is leaf sprung, you can't switch it to coils and links.
- Limited slips do NOT count as lockers and are ok.
- You can race with 33" tires and one locker
- Or
- 35" tires and no locker.
Does not matter what it came with from the factory (LSD, Open, Locker).
As an example, the 2009 Hummer H3 Adv pkg come with 33" tires and front and rear lockers. Even though that is a factory option, it would still be bumped up to Class B. The 2006 H3 comes with front and rear limited slips. So I could race that on 35"s and still be in Class A.
Do they make ARBs for the front and rear of a Vehi? I'll do more research on this too.