If they are self tapping screws, the drill bit is as thick as the solid barrel of the screw. If you want the screw to go through easily to have a nut on the other side, then the drill bit is slightly larger than thread size.
The question is a little confusing. If the floor is level you just put the bottom of the sliding glass door track on the floor. With the stationary section of glass in place the one side of the door should now be quite plumb and all you have to do is attach that part of the frame to the house. On the other hand, if you are asking about a door that is already installed and are wanting to plumb the slider, there should be two screws near the bottom of the door sides and two screws near the top. In order to turn the bottom screws it may be necessary to relieve pressure from the top screws and slightly lift the bottom of the door. Adjust the door so that it is parallel to either the stationary glass or the side frame, whichever side has the locking mechanism. LEVEL equalls left to right.....so place door in a bed of silicone greater than the amount the existing floor is out and shim the appropriate side up until the top of door from left to right is level PLUMB is vertical....... top to bottom and left to right with in one side of the jamb;;;jamb must be plumb in both direction and on both sides of jamb within a straight lin of itself for it to be SQUARE....
It is under the steering column on the left side behind the plate that covers the bottom half under the steering column, two screws on the bottom of the plate will remove the plate, then yoiu have to remove the adjuster for the right side mirror
3 side
Screw
take the screws out on both sides and put it in and put new screws in
Each case type opens in a different fashion. Many have a sliding side panel that is secured at the back by two or three screws.
remove the 2 side panels to access the mistery screws. there are 4 or 3 screws on each light. a pain in the bt
Eight.
if you look on the dash you will see a hump running down the middle, if you push down and forward on that hump right underneath the windshield it will come off and reveal some screws .i cant remember if it is on the drivers side or the passengers side but taking the screws and panels off will reveal it. it will be under one of the dash panels, i cant remember witch side
Console is secured by six screws at its bottom, three on each side.
remove left and right side A pillars facia panels (pull off carefully) remove steering wheel upper and lower shroud (3 screws) unscrew instrement panel screws (x2) just underneath the panel unscrew the 3 screws right between the dash and windscreen ( 1 in middle, 2 either side) Open passenger and drivers door, remove single screws on each side near air vents. (you should have removed the a pillar panels and 10 screws, or the dash wont budge) Pull the entire dash towards you.
At the top front of the radiator housing on the left side and secured by 2 screws. Undo the screws and pull up the black housing. The air filter is inside the housing.
remove the two screws and then yank it out. retaining clips hold them in place.the side panels can be yanked out, but risk damaging the retaining clips. just yank them out and hope nothing breaks, seriously.
theres a few screws under the dash on each side. Take the panels off underneath on each side and you get to the speakerss which if i recall correctly are 4 inch.
it's under the dash on passenger side secured with 4 screws. disconnect the harness as well before removal.
you need to take the interior panels of. there are 2 star screws on each panel behing a cover. the rest is all snap fittings