The small hoses carry engine coolant to your throttle body to prevent it from freezing-up in the winter. They are 8mm (5/16") inside diameter. A couple of them need to make some sharp corners so I recommend going with the genuine Toyota formed hoses (straight hose might kink on you). To my knowledge all of these formed hoses are still available through Toyota. Here's a thread that shows break-down and factory part numbers: http://www.toyotavantech.com/forum/s...=2052#post2052

In that thread I recommend using Gates bulk hose for the straight ones, but if you're after the best, Toyota's straight hoses work better than Gates. IMO Gates is arguably a better hose but the problem comes with wall thickness. Gates is a bit bulkier so the factory clamps don't work. I used to think the stainless screw type clamps were better but I've learned that over time they are more likely to leak. The big advantage with the factory spring clamps is they "self adjust" as the hose ages & they rarely leak. For this reason I've gone back to factory clamps. The longest piece of 8mm straight hose you can get from Toyota is about 8". It's Toyota part #99556-10200 and costs around $5.

If (and that's a big if) you can remove the throttle body without damaging the gasket then I wouldn't hesitate to re-use it. Unfortunately that gasket usually sticks hard and gets destroyed on removal. Then there's clean-up. This gasket can be a PITA to remove. I usually remove the stud and use my die grinder with a 2" Scotch Brite disc. If you don't have that then a razor blade and some elbow grease will be required. The throttle body gasket is Toyota part #22271-73011. Toyota will want around $5 for it but I suspect you could get aftermarket at most auto parts stores for less $$$. Tim