Newbie to manual / air operated hubs.

[Blacksails]

Just to be clear.

Which actual hubs are fitted to your GQ?
This one?
images.jpg

Or this one?
images1.jpg

If pic 1, the selector must be in the locked position to engage the the hub to the axle shafts so 4H or 4L can be used. If not, and you select 4H or 4L, you will not have drive to the front wheels, even with the air locker switched on.

If pic 2, Whether you are in the locked or in auto you can select 4H or 4L and the front hubs will engage the axle shafts. If you have these hubs it would be best to keep them in the auto position. for normal driving, if your doing some harder tracks I would switch to locked, just so you know they won't disengage by themselves.

As for switching between 2H and 4H on the fly, yes you can, but only up to 40KPH I think. You can't switch between 4H and 4L on the fly....

The first type. Labelled and switchable between “4x4” or “4x2”

Thanks guys. I feel as though it’s clicked and I understand fully now