I have been thinking about putting a set of coil-over shocks on the back/front of my LWB buggy. I know this will stiffen up my ride, but are their any other disadvantages or advantages???????

Matt

From what I can gather the shock absorber mounts were not designed to take the extra forces applied when COIL-OVER shocks are used.

Just my opinion, someone may already have this set-up and it may be working OK.

Good question... i've been wondering about this too as it has been on my wish list. I know most coil over shocks are adjustable and they seem popular on US buggies

I thought most of those US buggies were using coilovers as the only springing and rods through the beam to tie the arms in.

True, but they also seem popular on bajas, with torsion bars as well. It would be preferable to get stiffer torsion bars instead, I know T3 wagon rear bars fit and are stiffer.

I have a set on the back of my KG for the last 9 years. Apart from the stiffened ride, nothing else bad I can report. I bought a couple of heavy duty shocks (no coils) from the DOVW and about to put them on to see the difference in handling

The biggest problem you will get with coil overs is that most are crap. Those yellow ones with teh chrome springs are a bad shock and a bad coil.
The rear of a type 1 will happily handle the extra forces put on it by the coil over 95% of teh time. For example I would not run them in a race car as the jumps would eventually take their toll.
If you are going to buy some I recommend Custom Off Road as they make their own and use good quality shocks and coils. I have a set of theirs I ran for quite a few years on my Baja and it was worth it.
They are a good cheap fix.