GU wheel bearing locknut and washer install in GQ

[4x4falcon]

I've see lot's of references to this but nothing that actually shows what is done.

So here it is.

[4x4falcon]

Change GQ (possibly MQ/MK as well) double nut and lock washer to GU single locknut and washer.

The parts.


Top the GQ double nut and lockwasher, bottom the single GU locknut and washer.


Tools I used, not show is 8mm hex bit and ratchet.

[4x4falcon]

Remove the freewheeling hub.



Nothing difficult here just undo the six bolts with an 8mm hex bit and ratchet. There is also no need to remove the wheel.

[4x4falcon]

Remove the hub locating ring (don't know if this is what it's really called but it stayed in the hub when I removed the freewheeling hub.

[4x4falcon]

Remove the circlip


Use external circlip pliers.

[4x4falcon]

Remove the inner part of the freewheeling hub.

[4x4falcon]

Remove the lock washer.


I found this the most frustrating as it kept getting jammed on the thread and there's really not a lot of room to get hold of it. Using a magnetic pickup and long nose pliers for one side it came relatively easily but the other I had to get a small screwdriver to lever it out.

[4x4falcon]

Remove the inner nut.


Once again I used the socket but really not necessary.

[4x4falcon]

Time to put it all back together.


Put the GU locknut on.


This is a hand tight initally but then I used a pin punch and hammer to get it completely tight. You could make or buy an appropriate tool.

[93patrol]

good photos and thread mate this also helps when doing wheel bearings repack and/or replace