Universal joints are a noglory item. You can't chrome 'em, and they don't make you go faster. However, worn U-joints are a safety hazard and should be replaced at the first sign of a "clunk" in the ...
If you have driven for a while, you have probably heard a mechanic or do-it-yourselfer use the term "universal joint." Often they'll include the name of this mechanical part in a car in a statement ...