I'm still working on my West Coast build and noticed that the rear arms stabilizing the 9" Ford rear end attach to the frame at a point that has a horizontal top section where I would expect it to be open. This appears to me to limit the spring and shock / axle travel. The photo is of the left rear. This chassis came with that installation but the manufacturer has been building these for years and I don't imagine he designed it this way without a reason. I'm a near-complete auto amateur, so I'd defer to his expertise if I could get him to answer my phone calls / messages / emails. Can anyone shed some light on this? I'm tempted to cut off the top of this attachment point to allow for vertical travel...otherwise I think I'll be getting a pretty swift kick in the rear over most any bump requiring rear suspension travel. ....what am I missing here?
Thanks!
Dirk