After installing Maximum Motorsports Extreme LCA's there is now a howling noise coming from the rear end. I knew that some road noise would be present but my flowmaster exhaust with no cats can't come anywhere close to drowning out this sound like MM's website said. I have to turn my aftermarket radio with sub 3/4 of the way up to overpower the sound. Could there be a bad bearing in my rear end somewhere causing this or do the spherical bearings in the lca's transmit much more noise than MM claims?