So, here's what we have for WMS to WMS spacing for the front 1/2 ton axles...
GM Dana 44 Front (single wheel) ..............69"8-lug; 67" 6-lug
GM 10 bolt front (single wheel) ..............69" 8"lug; 67" 6-lug
The next question is: Is it the hub and rotor that makes the 8 lug WMS-WMS wider or is it the actual housing or something else that makes it wider?