[Hellz]

i dont have a answer about the tranny... it does make sense that it will be compatible, but for which engine are you talking about?

you never said what year of a H2 you have. so do you have a 6.0L or the 6.2?

i dont know if you can swap the tranny from a 6.2 to a 6.0.... but, i would not be surprised if there is a adapter plate that will allow this.

as for the air ride....

the #1 problem is old, cracked leaking airbags. if you notice your pump is always on, check the bags and replace right away.. i find teh bags for only $80 on ebay all day long, where as the pump is about $800..

so check and replace the bags before the pump burns out, and it will take care of you.. or, for about $200 you can buy springs and switch it over to a coil system and you can either leave the pump in for filling tires or what not, or you can completly remove it.


as for perforamce....

the newer models only have about 20ish more HP than the older one.. the biggest benefit is teh tranny being 6 spd, where as the old one is only 4 spd.

fnt/rear diff gears should still be the same at 4.10.

same t-case.

20 HP is easy to make up with the 6.0 with a little cash..
most expensive to cheapest:
Turbo charger
exhaust
headers
maybe CAI
perf tuner

any combination of the above can get you nearly 20 hp if not more

lose whatever extra weight you dont need to lighten the vech will help.
use higher octane gas
better spark plugs and wires.

also for the tranny, i would recommend changing to the external tranny cooler if your doing alot of hauling.

im sure other people here have alot more input than me, and prolyl more accurate