Toyota Repair: 1999 3.4 L Timing Belt Change, ft lbs torque, timing belt tensioner

Question
QUESTION: I have a 1999 Toyota 4Runner with a 3.4L F/I 5VZFE engine with 136,000 miles (4 wheel drive, Auto, AC, PS). I am going to replace the original timing belt. Other then pressing my luck on the timing belt, the truck has been garage kept and well maintained. While changing the timing belt, I was also planing on changing the water pump and thermostat (since they are also original too). My question is... do you recommend that I also install a new timing belt tensioner and/or any of the camshaft, crankshaft, or idler pulleys? There are timing belt kits form Gates and Goodyear that contain the parts listed above. Ok to use a kit from a well know manufacturer, or stick with Toyota parts?
I know that I need a special tool to remove (and to reinstall) the crankshaft pulley bolt. I plan on getting a new Toyota bolt (217 ft/lbs torque?). Thanks for your time and help!  Mike


timing belt   ANSWER: Replacing the water pump is a good idea, I would recommend doing the seals and the tensioner idler pulleys also due to the age of the truck, there is a large tensioner in between the two camshafts, these are a trouble source and should be replaced as well, aftermarket kits are ok to use. I have attached a phot for you which may help.

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QUESTION: Thanks for the quick reply.
When you mentioned seals... were you referring to the camshaft and crankshaft seals? If so... are there any special tools and/or techniques for their removal and installation of the new seals?
Thanks again!
Mike

Answer
Yes, the cam and crankshaft seals , one for each cam and one for the front of the crankshaft, you have to remove the timing belt gear from the front of the crankshaft, the crank seal requires no special tools although they are available, a hammer and a flat puch usually works to put it in, the cam sprockets ca be removed using a holding tool and a breaker bar to break the bolts loose, there is a tool available at most autoparts stores to hold the cam gears as well as a tool to install the seals, but again the tool is not absolutely necessary. The ols seals can usualy be removed using a screwdriver between the housing and the seal and pry them out.