For ease of ordering all spindle parts are sold individually. To put together a complete spindle you will need to order each part separately. You will need: 1-spindle upright, 1-steering arm, 1-brake bracket, 2-steering arm bolts and 2-brake bracket bolts for each spindle. For easy replacement of damaged parts these spindles were designed as a bolt together assembly. This spindle features a bolt-on steering arm and brake bracket. These spindles feature aluminum or steel steering arms, gusseted steel upright, and steel caliper brackets. They are available to fit most common wide-5 and 5 x 5 style hubs. The spindles are available in two heights of, 8" (7 3/4" actual) and 9" (8 1/2" actual) tall. 10 degree spindle inclenation with 3 3/4" spindle pin height. "WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm."