When I went to get a vin verification and emissions test for my LX450 on 37's I went to the one off S. Federal and Mansfield. Once I mentioned full time 4wd they sent me to the north side of the shop. Didn't even try to put it on the AWD rollers. All they did was hook it up to computer. NO SNIFFER TEST at all. They told me that all the ACC stations can do this.