This welded FAB9™ 4130 rearend housing is available in lengths from 22" to 62-1/4" housing-end-to-housing-end in 1/4" increments. Pinion can be centered, 1/2" to passenger side or 1" to passenger side. You have a choice of 11 different housing combinations (see option list for details). The 4130 chrome moly eliminator II 4-link brackets with 1/2" holes and 1-5/8" spacing between the brackets for the rod ends are welded at any outside-to-outside width from 16-1/2" to 42" in 1/2" increments. All welded housings will also include housing fill cap; magnetic drain plug with copper gasket; 12-point 3rd member studs; aircraft washers and locknuts. Tapered back braces (which add rigidity for high horse power applications) and housing vent are optionally available. A signed Custom Rearend Worksheet (which gives us all the information needed to build the housing) is required with all welded FAB9™ orders. You will find a link to the worksheet on the order page.
Installation Instructions - FAB9, Axles, Third Member