Actually, that Rokmen 1/2" spacer kit is perfect. Its cupped and designed to sit between the metal bushing sleeve/retainer and the tub. And uses hard pressed cups for the grill snubbers up front bypassing those nipple retainers that break off easy. Works perfectly for stand alone 1" BL's like the ones from Daystar, Prothane etc.....Just ordered up a set of them from Rokmen and a new BrownDog 1.5" MML. And am in the process of modding the M.O.R.E. steering shaft riser to sit a half inch higher as well.
All problems solved(Rear DS angle improved,shift boot tension, engine fan better centered in shroud, exhaust hanger etc).