Universal 2 Hole 20mm Ball Mounting Base 38mm AMPS Pattern (10-21005) ranger Unlike common aftermarket replacements that

Unlike common aftermarket replacements that use restrictive crush-bent tubing

Engineered and tested by AlphaRex

Built in o-ring sealed dust cover cap

Fits completely under most tonneau covers

Requires 17" diameter wheel or larger

Universal 2 Hole 20mm Ball Mounting Base 38mm AMPS Pattern (10-21005) ranger Unlike common aftermarket replacements thatEvery good device mount setup starts with a solid foundation, and this is it. Westin's 2 hole 20mm ball mounting base is the anchor point that the rest of the Adventure Mount system builds on, pairing an extruded aluminum top base with steel mounting brackets so the ball stays planted no matter how rough the road gets. It carries the standard 20mm ball that Adventure Mount arms clamp onto, which means you can run a phone, a tablet or a camera off it