Specs
917-21002: This bracket is contoured to fit onto 1.5" outside diameter tubing. It can easily be altered to fit on 1.625," 1.750" perhaps even 2" diameter tubing as well.
Without modification, this bracket will accept a shock eye with a maximum width of 1". If the installer cuts away part of the support bushing, this bracket would accept a shock eye that is 1.375" wide.