I have an LCI power tongue jack for a TT and the nut that operates the manual override shaft has broken on 3 pieces (cast iron crap). I have contacted LCI but they don't supply spare nuts, just replace the whole jack they say. Has anyone experienced anything similar and more importantly, managed to find a supplier in the USA who can provide the shaft collar nut. I am in Australia and basically LCI power jacks are not used on TT's here as yet, nor any other power jack type. Jack operates ok on 12v but nut was broken during transport when battery went flat.