[THarms]

1) change out ALL the fluids to 100% synthetic (Amsoil highly recommended, shoot me a pm if you can't find a local source). This includes tranny, transfer case, front/rear differentials, power steering fluid, brake fluid, antifreeze (go with the 5year stuff and use a 60antifreeze:40 water mix so you get max additives), and the hydraulic clutch fluid if its a 5sp manual. You should be able to do all of this yourself.

2) Get the timing belt, alternator/AC/power steering belts and water pump changed. The new water pump should be good for 120K+ miles.

3) New shocks (highly recommend Bilsteins... pricey but the best on the mkt).

4) Upgrade the spark plugs to dual platinum.

5) Replace the brake pads/shoes (oem toyota are about as good as anything).

6) Beyond that, everything else would just be considered spare parts (ie oil, oil filters, air filters, belts, possibly a spare alternator, set of brake pads for the front (shoes on the rear should last a long time), Mass Air Flow Sensor (MAF), etc.

My '95 T-100 is quickly closing in on 150K miles and all I've done is changed the oil, antifreeze (3x), timing belt (2x), water pump (1x) and brakes (1x). I've also replaced all the tranny, diff fluids 1X. Besides the headgasket recall, the only thing that has actually failed is the Mass Air Flow Sensor (MAF) went out on me last summer. Truck runs as good now as the day I drove it off the lot with <10miles on the odometer. The are very rock solid trucks if you do the std maintenance on them.