be sure to get some white lithium grease worked down into pivots before you install them. Having one freeze while the hood is open results in a complicated procedure involving taking the wheel off, removing the fender splash shield and popping the spring off anyway, until you can get home and replace the hinge altogether. It happened to me in the race pits at the local track in the middle on an event - at least I had lots of help holding the hood and more advice than you could shake a stick at...