The Moog 5662 coil spring is not a taller spring but it is got a heavier spring rate (that is how you will get lift) if you have a standard cab with a 4 cyl you will get 1-1 1/4" of lift
after spring settles and if you have an ex-cab with a V6 and air you are only going to get 1/2" of lift, if this the case go to a Moog 5664 coil spring.
To install spring lift truck with jack and place jack stand under frame and remove front tire and remove swaybar link from lower control arm and the tie rod from the spindle and remove shock too and place jack under lower control arm and jack up high enough to take some of the pressure off of front coil spring.
With jack under lower control arm unbolt upper ball joint and seperate ball joint from spindle, you do this lowering jack (sometimes the ball joint will seperate) if not try a ball joint seperator (becareful the coil spring does not pop out and hit you when you lower the jack) once you seperate the upper ball joint from the spindle lower the jack and use a long prybar to remove coil sring from the lower control arm (once again becareful the coil spring does not pop out and hit you)
Once you remove the coil spring you may want to replace your upper ball joint if it looks to be in bad shape.
To install new coil springs remove rubber donut form top of old coil spring (2nd generation S10's have them on top and bottom) and install rubber donuts to new coil springs ( i use black or duct tape to hold the donuts to coil springs)
Now use a spring compressor to compress the coil spring so you can install it between shock droop and lower control arm.
Now comes the tricky part:
You will need to find out what end of the coil spring is the top, the top is sometimes spot painted white if not the paper that is in the coil spring box will tell you witch side is the top.
install the top of the coil spring into the shock droop and make sure you turn the spring so the end of the bottom of the coil spring fits into the pocket of the lower control arm.
you may have to lower the lower control contol arm so it fits or compress the coil spring so it fits into the coil spring pocket, if the coil spring is installed correctly the bottom end of the coil spring will sit in between the two inspection holes in lower control arm and you may have to raise the jack to keep the spring from sliding out during install.
Once the spring is seated correctly into the lower control arm you can start raiseing the jack so you can rebolt the upper ball joint to the spindle.
as you raiseing the jack the coil spring will pop back into place if it is seated correctly.
now you can rebolt the ball joint to the spindle and lower the jack and remove the spring compressor and install the front shock, swaybar link, tie rod end and front tire.
Take your truck and have it re-aligned and you are good to go.
Now if this sounds hard it's not, just take your time and you will be fine and just remember that RedBaron does this just for kicks