dude I can pull my truck apart and put it back together in minutes compared to the first time, everything is loose/new now. I know what 8 sockets I will need to have before I even lay down on the ground and get under the truck......
it took me 3 days to do my first clutch, with help from a friend! now I can do it in 4 hours by myself with hand tools...... thats not the point.
He better plan a whole day, probably weekend if this is the first time just a single CV shaft spring clip ( you know the circlue spring that retains the CV shaft into the diff) can take you all day to get out on an unfamiliar truck... just replacing a CV shaft on a 02 Dodge Dakota ended up taking us TWO WEEKS, thanks Dodge.... 3 different CV's availal for the same truck after 2 TSB's and the drivers side CV never did come out of the old diff, which we ended up having to replace......
my point is when you start to tear into something, and you are hitting a learnging curvbe (job you have not tackled before) you better research and plan ALOT or you can find no way to get to work on Monday morning, look at JT, simple oil change = nightmare