I have been told that the pneumatic suspension is bad and to avoid it because it is very expensive to replace.

I have also read that it was only available on auto matics (at least on the GL10s)

Is any of this true?

-Jack

i have a 88 gl-10 a/t wagon and it works just fine

it is expensive to fix, though some will last longer than others, they have nowhere near the lifespan of normal spring suspension. The bags can pop, lines can go, electronics can go etc.

so is it true that they were only available on automatics?

in my experience yes. My 87 auto t-wagon had airbags but coils were put in. Every airbag car I've seen for sale has been automatic.

and its my understanding that it isnt all that hard to switch from auto to 5 speed, right? does the trip computer still work if you do that switch?

-Jack