GQ rattling in sand

Its not a hayman reece, just a standard towbar.

The sound is definately coming from the driveline, it mainly does it while under power and not while coasting.

A friend mentioned the LSD, but I havent had enough experience with them to know what could be causing the rattling.

Might pay to check the uni joints, is there any movement in them? Hopefully its not the diff, usually means $$$.

Cheers

Captain

It must be something along these lines, like you say it never makes a peep anywhere but when Im in sand.

Very frustrating and usually turns heads on the beach when it sounds like the car is falling apart.

I think the six pack is safe, Its got a fairly new full 3" system fitted when the turbo was strapped on. It only does the noise in sand.

We first thought it was a loose wheel but that was tight, then I got the brakes redone.. It sounds like a loose bearing cap type sound. very odd.

Sounds strange!I would nudge the GQ up to some thing solid (your mates Toyo) put the thing in 4wd (in the sand) and give it a push, you will find out if its the diff/gearbox or drive train problem.If this checks out ok Id go back to loose stuff again.Get some one to listen out side.Can you narrow it down to front or back ,left or right? Is it worse on up/downs or weaving along wheel tracks on the beach.
Niffty GQ HQ
Perth

The sound definately comes from the back wheels area, bit hard to pinpoint exactly where since it only does it while moving. We have had our heads underneath while easing out the clutch to look for signs of movement but no luck.
Rattling sound usually happens in soft sand and over flat or undulating/corrugated ground in straight lines and turning mainly when traction is reduced. It never happens on bitumen no matter how rough it is. It makes me wonder if it is something to do with the LSD since the only main difference from sand to bitumen would be traction
Another thing to note it that I have only noticed it when the tyre pressure is reduced as I dont recall it happening before I unleashed the trusty stauns last weekend in Lancelin before getting on the track.

What about reversing? Might be the trusty stauns hitting the rims :) Grabbing at straws now!
Niffty GQ HQ

If has got rear disc brakes check the deflector plate that covers the disc they crack around the three bolts that hold them on .To fix just remove the plates and weld a big flat washer to the plate over the holes and cracks. hope this is your problem ( cheap to fix)
cheers Guna

have to agree with gunabat have had the same prob took a while to figure out also change the rear diff oil and replace with LSD oil Col

Unis are funny things. They wear in one spot where the diff usually sits. When placed under load (such as in sand) your diff will actually roll in its mounts a certain amount (due to torque on the diff) which makes the uni work out of its usual comfort zone hence the clicking noise. They will also do it sometimes when you back off( reverse to the sand thing) Very hard to pick sometimes. Cheers marn

I have also welded a rear brake disk stone shield on a GQ before. Noticed it was rattling. Might be worth a check
The GQ was my dads (Member-Borgy)
Cheers Luke