Bought these to replace the old front shocks on my '99 Tahoe with a Fabtech 6" lifter. The only one Problem I have is metal.The insert on top was too wide to fit in the brace but trimmed a bit with a dremel and it worked.One weird thing about these shock absorbers is that the shoe actually comes off the bottom, not from the top.I've never seen these but they are supposed to be installed that way.Always mount the Bilstein logo the right way up.Did it a few hundred miles and no problems.Great ride for a lifted truck.