1. Will a third member from a semi-floating axel fit and work in a full-floater? 2. Are the differential units the same? I know that ARB has two diffs for the 60/62 (full & semi floating) does Toyota have the same? Will I have to use another diff instead of the ones that I already have? 3. Is the FF axel that Specter sells a good deal? Has it been checked for straitness and worthiness? They won't say. I don't want a $450 bent and worthless axel. I don't want a Dana or ford 9". Only factory Toyota and aircraft parts are used in my cruiser.