When I did mine I found the instructions on 4crawlers site which are broken down into 60 steps to be very helpful and easy to follow.

http://www.4crawler.com/4x4/CheapTricks/EngineMods/TimingChain.shtml


Pay attention to how the power steering bracket works when you take it off. It took me a while to figure out how to put it back on.


1990 Truck 4X4 5sp 22re