98 Tahoe lift
 

I am finally going to put a lift on my truck and need some advice. I'd like to see A good 6" air ride lift. As far as I know everything on this truck is stock so run down the list for me. New gears, best fit tires (currently running 20 wheels but willing to change them), best suspension kit manufacturer (80% on road/20% offl).

Just throw it all at me and I'll filter through it. Thank you.