After 20 years I am sure we could guess all day. If they metal you can get most with a magnet. Flush the tank and dry it out should be fine.
89 2.5 TBI, 4" RC lift, 1" Booms, SYE, Adams Driveshafts front and rear, Ford 8.8 with 4:88s, BFG 33X12.50X15, and a ton of other stuff.
AF Jeep Club Tail Number 184