First you need to own a vehicle you can actually work on. I drive a 98 Lincoln Town car or a 97 Ford Powerstroke
Set of combination wrenched, 1/4" and 3/8" socket set. 3/8 ratchet with 3/8 to 1/4 adapter, large, small and stubby blade and Phillips screwdriver, 10" crescent, medium sized channel locks, and vise grips with the curved jaws, 2 5' pieces of wire with alligator clips. Jumper cables or a jumper battery, a gallon of water and a qt of oil. A 1/2" breaker bar with a socket to fit the lugs and a 1/2 to 3/8 adapter. A small ton hydraulic jack ,Except for the breaker bar , jack and the battery it all fits in a small DeWalt tool bag
Set of combination wrenched, 1/4" and 3/8" socket set. 3/8 ratchet with 3/8 to 1/4 adapter, large, small and stubby blade and Phillips screwdriver, 10" crescent, medium sized channel locks, and vise grips with the curved jaws, 2 5' pieces of wire with alligator clips. Jumper cables or a jumper battery, a gallon of water and a qt of oil. A 1/2" breaker bar with a socket to fit the lugs and a 1/2 to 3/8 adapter. A small ton hydraulic jack ,Except for the breaker bar , jack and the battery it all fits in a small DeWalt tool bag