Material Chrome Plated Steel Unit & Package Sold by each, color plastic bag Chrome Plated Steel I.D. Height Description 20170 7-1/4" 2-3/4" 7-1/4" dia. axle, 12 of 1/2" studs 20180 8" 2-3/4" 8-1/2" dia. axle, 8 of 5/8" studs, also fits "Peterbilt" 1995 up Part No. & Image Selection Rear Hub Caps in Classic Shape Part No.: -- Please Select -- 20170 20180 Combination of product variants is not available Updating... Related Products Rear Hub Cap for Ford Sitting Rooster Hood Ornament Quarter Fender Pipe Plugs Bottom Mud Flap Plates with Script Round Headlight Visor Lighted Bumper Guides 7/8″ Dia. x 49″ (L) in Tall Pyramid Style w/ Chrome Steel Clamps for Steel Bumper