I purchased 2 air ride replacement shocks and 2 struts for my Cadillac Eldorado. The rear shocks were 40% or so thinner than the originals, the top mounting was at least 1/8" narrower than the original, and I did not feel comfortable using them. I tried to return them and was told that 30 days had elapsed, too bad. I explained that in Upstate NY the weather was not conducive to working in the driveway, and was again told "Too bad, 30 day limit". I was also told as I was complaining about the rear shocks "We don't even make those" - which is in direct contradiction of the tone and wording of their advertising videos. One has to wonder from which Asian paradise those shocks may have been sourced.
I got disgusted, will sell the rear shocks on eBay. I bought Arnott replacements, they were actually identical to the original, bolted right in no hassle.
Turning to the front struts - They are substantially similar to the original other than the springs not being of the same diameter steel. I installed them, they went in fairly easily, no problems - UNTIL I go to install the sway bar link to the new strut mounting bracket. Two problems. The original strut bracket is built up in thickness to accommodate the unthreaded shank of the sway bar link. The strutmaster replacement is the same thickness of steel throughout the mount. They did include a block of approximately 1/4 inch steel with a hole drilled in it to accommodate the link. Two problems: first, the darn link end will not fit through the hole, and second, there is not the same degree of strength in the thinner strutmaster mount to provide lateral support for the sway bar link stud.
On calling tech support at strutmaster, I got an answering machine. A day later, I get called back, and they left a voice mail for me. I returned that call, and again, got their answering machine. THIS is tech support???????
To be honest, I bought these because, and only because, they allegedly are US made. I have plenty of experience dealing with Chinese vendors in my business, and preferred a US product to repair something that weighs 4000 pounds and moves down the road at 90 MPH. Based on the quality of the rear shocks, and the sloppy design of the front struts, and the erroneous sizing of the hole in the spacer bar for the sway bar link, and the barely civil treatment I got from customer service, that Chinese junk is starting to look better and better.