HD2 Running Boards 99-06 Silverado/Sierra Ext. Cab Rough Country Exterior Parts & Car Care - Armor & Protection Inside Length: 13

Inside Length: 13

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Drain Thread Size: M12 x 1

Bolt Pattern: 5 on 110

HD2 Running Boards 99-06 Silverado/Sierra Ext. Cab Rough Country Exterior Parts & Car Care - Armor & Protection Inside Length: 13Swap out your skinny, factory running boards with Rough Country's wider and more aggressive HD2 Running Boards! These beefy, cab length running boards make it much easier to get in and out of your truck. With a durable all steel construction and reinforced mounting solution, these running boards remain strong and sturdy through years of climbing into your cab. Each step features two non skid plates with a stamped RC logo for good looks and easy entry.