Caller Tulis said her mechanic “sheared” the wheel bearings on her Civic to fix a grinding noise from the brake area… But the noise later returned, at which the mechanic said he had already “sheared” the bearings as much as was possible, so next step was some replacement parts. So Tulis phoned Car Talk for a second opinion. Ray & Tom said they never heard of “shearing” wheel bearings, and Tulis’ mechanic may be relying too much on prisms and crystals trying to fix her Civic’s brakes.
I’m thinking what the mechanic actually did was “shim” the wheel bearings, and Tulis thought he had said “shear”. And that’s what caused the confusion. What do you think?