I carry a small tool box with a good assortment of wire connectors,wire stripper,crimping pliers,a couple of clip leads,about a foot of #14 wire,electrical tape,4" vise-grips,a 4-in-1 screwdriver,a small prybar,an assortment of hose clamps,light bulbs,fuses,a handful of nuts and bolts,a 6" piece each of gas hose,vacuum hose,a mini-mag light,a mini tubing cutter,a rail of 3/8 drive deep sockets,ratchet,two 4" extensions(one has a ball end for the not quite straight shot at the bolt),combination wrenches from 1/4" to 3/4",a tape measure,note pad and pencil,a zip-lock sandwich bag with some bandaids and a little tube of neosporin,and a good compass. Granted,you probably won't need about 99% of this stuff,but I've used it all before,because I can't seem to go anywhere without stopping to fix something for somebody. Besides,it's a lot better to have stuff you don't need with you than to leave what you need at home,where it does you no good at all.I'm sure there's a clause of Murphy's Law that covers this.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck