27-3/8" (with 4-link), for 33-3/4" wheel to wheel width, tubular tie bar. Symmetrical brake mount pattern.

17-1/4" 4-link centers, for 34" wheel to wheel width, 1/4" steel 4-link brackets, tubular tie bar, for flanged axles, symmetrical brake mount pattern

17-1/4" 4-link centers, for 34-5/8" wheel to wheel width, 1/4" steel 4-link brackets, tubular tie bar, for foater axle kit, symmetrical brake mount pattern

Modular 9" aluminum 4-link housing with steel end bells welded to 3" chromoly steel tubes

20" (with 4 link), for 37" wheel to wheel width, tubular tie bar, for flange axles, symmetrical brake mount pattern

37" wheel to wheel width, aluminum billet tie bar, for floater axle kit, 

16" wide center modular housing. Includes studs, nuts, and washers. No brackets or end bells.