14" wide center module housing. Includes studs, nuts, washers, and cover. No brackets or bells.

With 4-link brackets, tubular tie bar, standard end bells w/symmetrical brake mount pattern, (25-5/8" wide for 31-3/4" wheel to wheel width).

Standard 28-7/8" housing width, with aluminum billet 4-link brackets (18" centers), aluminum end bells

Steel Tube, any width housing, and 4-Link center to centers (19" minimum). Includes main caps, adjusters, pinion bearing races, rear cover, and choice of housing end. (no internal parts or axles)