ASSEMBLY
Step 8:
Cap the Seat Support (18) with a 2" Sq End Plug (43). Attach the Quick Release (55) to the Seat Support (18). Attach the Seat Support (18) to the Upright (3) using two 3/8" x 4" Hex Head Bolts (64), four 3/8" Washers (75) and two 3/8" Nylon Nuts (77). Attach the Seat Support (18) to the Base Frame (1)
using the 1/2" x 3" Hex Head Bolts (62),
four 1/2" Washers (74) and two 1/2" 
Nylon Nuts (76) as shown. 
