Please keep you truck as original as you can, This is what made Toyota what it is. If you need small parts, a lot are still available from the local dealer. Yes, I know, the dealer is more money than the local salvage yard, but the parts you buy should last another 20 years or so. I just completed a complete frame off restoration on an 83 4x4 short bed. (If you ever want to sell...let me know!).
