If you dont already know, alot of people are swapping to stainless steel nuts, bolts, washers and so on. when your pulling your stuff apart learn your bolt sizes. Its a big help and makes a diff. between putting somthing back together and "assembling" Yuo will also learn by doing this that there are not alot of different size wrenches you need. Make sure to learn coinsiding taps and dies for cleaning out your old bolt holes and bolts you breaak off on older cars. sound anal but theres alot to be said for nuts and bolts for old projects.