Last night I fitted my K frame back into the SLR. It took 4 goes to work it in but 1 time it came back out because the rear mounting rubbers that need to be pressed into the K frame have the wrong size metal sleeve fitted to the guts of the rubber. The centre sleeve had to be drilled out just over a millimetre!!!!! The original bolt was used. I measured the original rubber at a smidge over 11mm and the new ones at 10mm. (my vernier is metric) I don't have much time for Rare Spares any more.