I have lift kit parts (shakla). They fit Sierra, Silverado, Yukon, and Tahoe. A set of American Hammer upper control arms.. accepts lifts from 2 inches to 5.5 inches. And a set of Australian front and rear springs that lift 1.5 inches and provide great stability off-road. *For pickup truck owners, I might sell the front springs alone with the control arm (the rear spring does not fit pickup trucks). All parts are for sale or trade for original parts. I am looking for original upper control arms from 2014-2018 for a pickup truck or 2015-2020 for a Yukon or Tahoe. Note that the cost of the new parts, including the 4 springs and upper control arms, was around 3000. All parts were purchased two and a half months ago, so they are considered almost new, and I have the invoice.