Our recently purchased diesel super C leans toward passenger side on the back end (axle) of the chassis, apparently due to more weight on that side from a large slide and generator. The proposal to fix is provided, I understand, by the GMC folks and involves adding a spacer block or such. I imagine it is to put a block between the spring and the axel to raise the springs on the low side. Is this a good way to go about this or does anyone have knowledge that this is not good or that there is something better? Thanks.