Got one of these a while back but just realized that the chains in the kit are 3/8" as are the grab hooks. My tow chain is 5/16". The tow chain fits in the winch attachment at the top of the jack (just like a grab hook). The bigger 3/8" inch grab hooks hold the smaller chain OK, but will they slip out? How about putting the bigger chain in the smaller grab hooks? It seems to fit, but sticks out of the grab hook a bit. Will it hold?