Is there any clearance problems with going to ashorter ratio gear set in the diff housing ? I know that depending on the type of 9" diff housing you start with limits you in ratios I.e 2.92 one legger 9" can only go to something like 3.45 any shorter and the crown gear physically won't fit the housing some older holden diffs like Salisburys have the same issue. Are there any problems like this with the Borg Warner housings in a AUII ? I've got a ticford enhanced AUII 6cyl auto that really needs a set of 4.11's and have no idea if this problem arises as I've never played with these diffs before