Off-Road Ranger I
Enthusiast II
Member III
Member III
I wasn't aware that was an option. I have a set of Firestone bags on one of my projects and they dont have built in bumps. If I build something else with bags, that's something I'm going to look for.The firestone and slam air bags have the bump stops built into the insides.
That was the reason for the question. I've normally ended up with the upper being a bit shorter to ensure the pinion was angled correctly. A project like this I wouldn't worry over instant center, just pinion angle.The same length arms are for maintaining pinion angle asa the suspension cycles.