We have a 1978 21 & 1/2 ft motorhome. I would like to stiffen the back suspension up some. I am thinking about putting in some round rubber inserts into the rear coil springs, (saw some in Canadian tire yesterday). Does anyone think this would help and if so how many would each spring need. I can,t afford to go to the expense of pulling the springs and having them reset. I will be towing a 4ft x 8ft utility trailer behind me, loaded up to 1500lbs or probably less, tongue weight 200lbs or less. Could I put these rubbers in myself rather than taking it to a shop. If this would not work, is there any other suggestions. :laugh: always appreciated,thanks. Chas.O.