This kit comes with a CNC machined rear axle that has coarse Left hand threads, Lightech chain adjusters, captive axle nut, captive caliper bracket and Left side wheel guide that includes 2 captive wheel spacers that fit in the bearing.  

• -Speeds up wheel removal and installation
• -CNC machined axle with left hand threads
• -Lightech chain adjusters included
• -Captive axle nut
• -Captive caliper bracket
• -Billet axle pull cup
• -Use captive wheel spacers for best results 
• -Specific pins needed for Pit-Bull trailer restraint system