There are nearly 9000 threads on this Very question... you can find them all by searching. Granted, the forum search sucks, but there's a fix... as found in the stickies, but I'll link it here too just incase you can't find the stickies at the top of the forum:
Alternate Search for T4R - 3rd Gen Section
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'99 Limited 4x4, Millenium Silver ~
Maintenance Thread