Hi, Don, so we just talking a torsion bar adjustment of the rear? if its a swing axle... by raising the rear... positive camber can make the rear end a bit more unpredictable with bouncing and rebounding around on the dirt. None the less... take it easy and get a feel for it... Either way its been done and teh systems been raced and proven through the baja desert
🙂 , so don't stress. but yea,
1) can do in couple hrs and can be a one man job. Just take caution. the torsion bar is under alot of stress... you gotta be careful. I got 7 stitches from trying to do it back up after pulling it apart. (although not directly related to the tension causing it, but non the less resulted in the floor pan 'splatting' the right index finger flat... fun fun)
2) need a jack, bit of chain, socket set and maybe a pri bar or large flat head. (nuffin special)
3) no need for change in shocks, if urs still work, they will do. note that by increasing the preload on ur rear torsion bars for greater height will 'stiffen' them up, it will be a harder ride. so don't be suprised if u feel little pebbles on the road lol. no new parts needed, BUT! in the process you will be in direct contact with ur rear inner and outter torsion bars (SORRY i meant bushes... typo (10/5/10)), and if they are worn, you would be silly to pass up the opportunity to change them while u went ot the effort of pulling it apart.
4) Will need alignment of rear unless you mark where the rear hub carrier is along the spring plate. the holes for the bolts mounting the spring plate to the rear hub carrier are slightly elongated to allow the rear hub carriers to be moved closer or further up the spring plate for wheel alignment purposes. so mark at precise measure as precise as you can so you don't have to stress.
Heres the how to, or consult the Jeff Hibbard how to baja book. too much effort for me to write lol.
http://www.vw-resource.com/rearaxle.html
Enjoy
🙂