This Ultra-lite 9" floater kit features lightweight cog drive steel hubs, steel cog drive driveflanges and brake rotors. The Ultra-lite 9" floater is 7.2-lbs. lighter than our old style 9" floater. This kit is available in the standard 60", 61" or 62" track widths with the pinion on center. Custom track widths and offsets also available. The ultra-light hubs feature an integral rotor mounting plate with a 8 bolt 7" bolt circle. They are available with 5 x 4 1/2", 5 x 4 3/4" and 5 x 5 bolt patterns with 1/2" or 5/8" fine or coarse studs. Each kit includes: 1) 9" housing, 2) Ultra-lite hubs, 2) Ultra-lite drive flanges, 2) Ultra-lite brake rotors, 2) Inner bearings, 2) Outer bearings, 2) Seals, 2) Solid axles-28 or 31 spline and 2) Axle nuts and washers. Optional aluminum drive flanges also available. NOTE: Anything other than standard 60", 61" and 62" rears on center are considered custom. Please make sure that you have all the proper dimensions needed for custom track widths and offsets. Once the housing is welded to your specs there is absolutely no return. OPTIONS: The following options may be added to your rear end kit at an additional cost. Aluminum hubs, aluminum drive flanges, gun drilled axles, chrome moly tubes or cambered snouts. "WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm."