I'm currently having trouble finding a solid or even poly diff mount bushing for my 9". I called S&W and talked to two people and neither one was able to help me and tell me what kind of bushing it uses. I tried a solid one from UPR thinking it would work and that they just used an 8.8" but that did not work. Going to try and find a solid one for a 9" or just go to poly. The one that came on the rear end is rubber and its twisting.
call Team Z, they might be able to help out with the bushing you need http://www.teamzmotorsports.net/product_p/tzm-sphb.htm