Row 3: suction cups, taller spacer is for the back
1) Take apart the round mounts
2) Place top half on Xterra round bars
3) Slide bottom part into place
Insert smaller bolts into the assembly
2 bolts per mount
Bolts and washers order is shown in first photo above
4) Installed look
Big bolts mount as shown, washers are under bolt head and under a nut on the other side
place the wider bolt (3/8 inch) through a washer, then mounting bracket, then L panel
before tightening make sure the mounts are level, using a Level tool
When installed, Wing panel should be under the round mounts as shown
5) Install L panel
L panel should be under the bracket -- it helps with tension and angle
use 3 brackets (1 on vehicle end, then skip one, then 2 on vehicle front) -- here a roof rack (but it could be your stock cross bars) doesn't allow for using 4 brackets
using a power tool makes this a lot faster:
.... 1/4 inch bolts: 3/8 inch tip on front, 7/16 wrench on the back
.... 3/8 inch bolts: 9/16 inch hex head on front, 9/16 wrench on the back
6) Install main panel
place the suction cups on the panel first, the locking washer should be just under the bolt
the suction cup with a larger spacer should go on the back side (aerodynamic angle achieved when front is shorter)
Passenger side shown
7) Install main panel
align both panels, and apply slight pressure to the suction cups resting on your clean window (you cleaned it first, right?)
Place bolt, then washer, then L panel, then main panel at the bottom
Keeping the main panel at the bottom helps to keep proper tension
8) Maxtrax panel install 1 (if purchased)
included is a flat piece of foam neoprene sheet, with adhesive on one side
-- this foam dampens vibrations and prevents the metal panels from touching each other
measure and cut to length, stay away from the edges except near the brackets/bolts showing here
here the sticky side is on top of the L panel. This is easier to install, and great if you always carry Maxtrax boards. Otherwise It may be more practical to put the sticky side on the Maxtrax board instead.
9) Maxtrax install 2
install the Maxtrax mounting pins first on the panel, while it's off the vehicle
place round-bars bracket in place -- it is next to the front left Maxtrax pin in the photo. Don't tighten fully yet.
then place the Maxtrax panel on top of the L panel, with padding in between the panels
use 6+ bolts (here only 3 are used during testing)
washer should be present under the bolt head; locking nut is on the other side