i bought the same one, second hand from a goldwinger that already had the harbor freight front wheel chock upgrade already mounted. had a couple i bolts mounted on both side to tie down for added safety. you can also catch the HF wheel chock on sale for about $30 at times and there is always the 20% off coupon. have 3 of those now. 2 in the trailer and the one on the deck. They really work good.
Works great. money well spent.