THE WA1887 TRAILER KINGPIN EXTENSION FOR LOW PROFILE TRAILERS AND CAR CARRIERS SIMPLIFIES AND MAKES FAST ACCURATE MEASUREMENTS FROM THE KINGPIN CENTER TO THE TRAILER TANDEMS.  IT IS DESIGNED ESPECIALLY FOR THE CAR CARRIERS, FURNITURE VANS, LOW BEDS AND ALL OTHER TRAILERS THAT HAVE A VERY LOW PROFILE.  IT IS USED IN CONJUNCTION WITH THE WA1877 LO PROFILE EXTENSION BAR AND THE WA1888S, WA1888M,  WA1888L TANDEM TRACKER OR THE WA1890 TANDEM TRACKER SET FOR ALUMINUM WHEELS, WHICH BRINGS THE CONTACT POINT OF MEASURING POINT DOWN TO HEIGHT OF THE TIRE SIDE WALL.  MEASURING THE TRACKING OF THESE LOW PROFILE TRAILERS IS NOW