I set about installing the shocks on my Spyder build today and the rear lower mounts swing too close to the frame tubes to fit a bolt head there. Thy just barely clear without the bolts.
The bolts are M-12s, The holes aren't threaded or anything so coming through from the other side or making a stud would be a project.
So before I start trying stuff I thought I'd ask you Beck/Thunder Ranch owners: what's holding your rear shocks to the lower arm? Is your hub assy and lower shock mount like mine? Pics would be a bonus.