D120 - Brk Axle, TW= 70, 12 1/4x5, Air, Flg-***OIL HUBS***, 5.00 Tube, Std Bkts, 24/30, 22.31 Cam, 28 Spline, Auto Slk, Strt, Tramec, A/C ROD LEN.(TO CLEVIS)=5.62, 8-6.50 Hi-Pro, H-D, 5/8-18 Stud, Aluminum Bolton Fortress Cap, UndrSlg, SC= 42, 3.00 Wide, .75 High (HDSS), 43" Dbl Slp, 11250# 3 Leaf, Sprgs, DSS (Front) E-1743-01, STD AIR CHAMBER ORIENTATION, Calculate hubface & spring c., Calculate Leaf Sp Capacity, Tag Capacity is: 12000, Swivel Flg Nuts