peterbilt air window

Had a similar issue, I have a 2000 379. The air lift cylinder is most likely leaking. Its expensive, over $500

 

I wish i had an air cylinder problem. HEll i gotta leave over the passenger seat and crank down my window in my 379 lol

 

I have 2 if anyone interested , replaced 1 year ago , just replaced doors with 389 doors ...have to check if driver side not damaged ...would let it go for cheap

 

Can I convert my 379 passenger door to air. Or is there too much involved inside the door

 

Its not worth it , too much involved ..unless you have free parts and ton of time . I installed 389 doors on my 2000 379 , driver loves it .

 

thats all i needed to know. thanks pal
Can i install the rear view mirrors on the 389 doors? Im not a fan of how they mounted the mirrors to the body of the truck on later 379 and 389 trucks