- Location
- Rainy side of Washington
100% agreed.The relocation brackets we are discussing move the shackle into position A. According to that drawing, that stiffens up the spring pack. If that were the case, everyone in this thread wouldn't be talking about how much the ride quality and flex improved. It'd be the exact opposite.
If you think about it, the best shackle angle for ride quality will be such that the shackle is perpendicular to the datum line at ride height. Same principle as why a low control arm angle is good, it puts all the force into the spring instead of trying to compress the control arm or shackle. The problem is, you have to take into account the fact that the shackle can only swing so far forward or back before it interferes with the chassis. This works out in such a way on an XJ that the best shackle angle is somewhere around 45 degrees tipped back.