Stinger Pallet Forks and Frame 5500lb 48" Walk-Thru Universal Skid Steer Mount Cascade Forks. Designed for heavy-duty use. 5500lbs 48" Length. Walk-Thru. The frame design features a heavy duty machined 1.25" x 3" top carrier bar - this top bar is then welded to a 3" x 2" structural tube to make the top support even stronger. The bottom carrier is a 1/2" x 3" flat welded to a 3" x 3" support tube. Our main carriage uprights are constructed of 3/8" grade 50 steel. Our skid steer loader pallet forks are manufactured in a jig fixture by man to ensure high tolerances. Our high tolerances are important because this allows the fork to slide easily. Universal Skid Steer Mount.