Unless you want to battle the nut that locks the vent window in place at the bottom, which may/may not require you to cut into your inner door metal, take the whole track out that runs along the back side and down into the door. It's a little trick I recently learned from haztoys.

John B.

'87 Raider 2.6 Turbo Auto, Under Construction
'95 Montero SR, 35x12.5/15 BFG M/T KM-2's, Rock sliders, Qtr panel chop, gas tank lift, 2" BL, Aisins, 5.29s
'95 Pajero Mini
'98 Montero Winter Ed.
'04 Cadillac XLR
'03 Kawasaki ZRX1200R
'60 Ford Falcon 4Dr