Rolin wrote:
On our 2003 G3500 GM based motorhome we had a very bad shimmy when the brakes got hot. Found that the front calipers were not moving correctly, the pad was engaging the rotor incorrectly (pad not wearing evenly). I replaced the rotors, installed new pads, cleaned and greased all moving surfaces of the calipers so they would slide correctly.
No more shimmy and much better braking (less peddle pressure required).
This is very common on the Class C with cab over bunks. The rain, dew, AC water ect drips on front wheels and washes the grease from the caliper slides. That makes them freeze up and you have brakes from only one pad on each side. You can remove them and regrease them each year or always cover the front wheels when you are parked for any time no matter what the weather. If your brakes are more than a year or so old its a good idea to regrease the slides and then keep them covered when not going around....
