dually D60 front and 14b rear ?\'s 1) Are the stub shafts on a dually 60 front the same length as a SRW axle? 2) A van width 14b is 70" from WMS to WMS and a dually 60 front is 77" from WMS to WMS right? 3) It's been said on here that the track widths would match if I were using Hummer wheels on these axles. I don't see how this is possible if there's a 7" difference between the two. Can ya clear me up on this?