I have a great hummer h1 but i would like some help.
i know the HVAC on my h1 93 is different than all other years. and i know it has mechanical rather the vacume system.
the question is can i upgrade the whole (entire) thing to a new system?
i want to throw the entire thing i have in my h1 93 and replace it with a new system, compressor, confessor etc...

can i do that? I'm thinking to install a Yukon or Tahoe or any other car/truck HVAC system.

please help and advice...

Thank you