above post is wrong for a kombi,
you dont need to cut the beam into bits.
1, strip the beam down completely.
2, you need to move the spring plate retaining bush in both torsion tubes about 20mm so its just far enough to be out of the way
3, the bush is held by 3 dimples, the easiest way to move it is with a sledge hammer and a drift or dolly, stand the front end on its end or hard up against a solid wall, slide in the neat fitting dolly and give it a whack or 2, you will be able to see the bush through the hole , do this to both bushes
4, get your adjuster and sit it on the beam making sure it is placed at its highest setting ,this will be stock height, mark the slot through the adjuster on the torsion tube and cut it out (both tubes).
5, you then need to get a die grinder or a drill with a die grinder bit and grind down the high spots on the dimples, these are on the inside of the torsion tubes, you can get to them through you new slot you have just cut.
6, knock the retainers back to the place they were originally.
7, you will need to make a tool that will screw into the spring plate retainer to check it is free and can now turn, not loose just free. Weld a bolt 14 x 1.5mm with a thread around 40mm long to a piece of rod or something around 400mm long. you can screw that into the retainer and use it to turn it.
8,put the adjuster back into position and using the retainer bolt the adjuster all together including the locking plate in position, this will hold it for welding, tack it in the 4 corners.
9, remove the locking plate and install the new tool you made , weld on the adjuster making sure you rotate the retainer more often than not to make sure the heat doesnt lock the retainer up tight.
10, you are done
or check this post
http://www.thesamba.com/vw/forum/viewtopic.php?t=64301&postdays=0&postorder=asc&highlight=installing+adjusters&start=0