Which shocks IF...

FunTwoDrv wrote:
Ron,
That cupping on your right tire looked very much like the tires on our C. Unfortunately this happened after we put new shocks on. The tire mfg said it was due to us not rotating the tires. However, Michelin dealer claimed it was due to an out-of-balance issue caused by a belt failure... who knows! I put a new set of Michelins on and are watching them closely so as to not revisit this same issue down the road.
Gary

Hi Gary,

I was at an automotive workshop where "cupping" like I have was discussed. The person giving the lecture said "cupping" is caused from an improper alignment.

I do wonder if our lighter-weighted front wheel alignment which was compensated through off-set bushings, would have been better addressed through replacing the front coil springs with E150 springs.

The front coil springs on my E350 Super Duty chassis handle 4600 pounds.
My on-trip loaded rig with us in the front two seats, the entire front end weighs only 3260 pounds.
The E150 coil springs handle 3900 pounds, still too much, but closer to the actual load.

Because my front coil springs are rated so much more than my actual load, my front end sits higher than it should. The offset bushings installed addressed the positive camber created from the condition, but I feel the better solution are lower-rated front springs. Not just for alignment purposes, but also to provide a more comfortable ride. The heavy duty shocks should keep the front end under proper control to prevent any extra porpoising.

Ron Dittmer
2007 Phoenix Cruiser motor home built on a Ford E350-V10 Super Duty chassis with OEM 158" wheel base