Standard passenger side mount package for 2015-2020 Chevrolet Tahoe/Suburban & 2015-2020 Silverado 2500HD, 3500HD pickup & C3500HD Chassis Cab & 2014-2018 Silverado 1500. Standard PKG-PSM packages include a vehicle specific base plate, Heavy-duty pole without height adjust handle, tilt-swivel motion device, and a top offset plate. by bundling all of the necessary parts in one sku we have simplified the ordering process. The vehicle specific Heavy-duty mounting base mounts to existing OEM seat bolts for easy installation (C-HDM-176). Heavy duty poles (without height adjustable handle) include adjustable collar to be set at fixed height during installation (C-HDM-209).