Adjustable pinion snubber, are some better then others??

Hey guys and gals i'm in the prcess of converting my 74 scamp from a /6 to V8 and with that an 8 3/4 rear end. In an attempt to help it hook up a bit better i plan on buying a snubber. My question to you guys is are there some better then others?? Who has good deals on them?? and anything else you can tell me about them. Thanks!!!!