guides

I've got a 06 Ford Explorer 4.6 with the tow package that has around 133k on it. I bought the vehicle a couple of weeks ago and have no idea of its history. My question is would it be good medicine to replace the timing chain, timing guides, and tensioners while I do all the regular maintenance...

Im fixing the timing chain on a 2006 4.0 thinking of doing just guides already have 1 new tensioner the one next ti thermostat housing. I already removed intake, alt, bracket, ps bracket. What else is involved? Seems to me like water pump, timing chain/engine front plate, valve covers...

Hi everyone. I know timing chains has been done to death but just need a bit of help. I have a 96 explorer and as you can guess the timing guides have gone (one has, the rest are still ok). I have the engine out and have the timing cover off exposing the chains and can see clearly the main guide...