I have'nt, on first discovering the problem i grabbed some kitchen cleaner just something soapy in a bottle and without the car jacked up i sprayed some in there so as to cover the spring and spacer so the spring could slip without knocking, this worked once the soap had worked onto the spacer. but to be ohnest did not last long obviously once the soap had dried out. May try a little coating of grease when i can be bothered to do it lol. I dont notice it half the time. Andy