Nissan GU Auto Hub Locks

just to clarify...

What position was the transfer lever in??

Maybe jack the rear tyres off the ground and see if the front shaft spins when you put it in 'D'. Obviously be very careful, rear tyres just off the ground, and maybe 1 front tyre off the ground. in 2wd, only the rears should turn, in 4 wd the front will. Do you use 4wd often?

Cheers andrew

PS, When under my gu doing the grease thing, I usually get about 1 - 2 turns out of the shaft, then ''click" the hubs lock in and it won't turn anymore.

The reason the front prop shaft stops turning is because the auto lock front hubs are doing just that i.e. locking as they are designed to do when you select 4WD. That is how they are able to engage automatically "on the run" when you select 4WD the front drive shaft rotates and after about one third of a turn of the front prop shaft the hubs engage and stay engaged until you back up about 3 metres as long as you have disengaged 4WD. That way if you want 4WD in reverse they will stay locked. Yeah that grease nipple is a bit harder to get at but you will find the gap between the yokes is a bit bigger at around 3 o'clock so if you come in from the top and hold the flexible line on your grease gun by putting your right arm over the chassis rail it is a bit easier. Sounds like your service mob didn't try too hard and if you paid for a service they should have or if necessary obtain the tools necessary to do the job. Nice of them to let you know too:-(

G'day The Major.............

Not sure I'm the full bottle on this matter after reading what some of the other blokes have said about those bloody auto hubs.

However, before I changed mine over to the manual locking AVMs, I used to note the same issue when trying to grease the front shaft. With gearbox in neutral and front hubs in "auto", it was only possible to turn the front tailshaft about a qurater of a turn or less, before it sort of locked.......it would still turn back the other way a small amount, but you could rotate it to get the nipples facing downwards etc.

I wouldn't have dared to ask my wife to push the 3 tonnes on our gravel driveway, so I used to start the truck, put it in H4 and move it a small amount, check the position again and when I finally had the nipples in the right position, I could switch off and grease the shaft and uni's.

Now, with the AVMs, it's no longer a problem.

I'm now thinking (to use the original shift on the fly feature) that it must be necessary to firstly put the vehicle into H4 with the Patrol stationary, then drive off like that............from then on you may be able to change from H4 to H2 on the move, without any issues and with the hubs still in auto. It's only a problem if you back off the throttle while in H2 as you may not then be able to move back into H4 without stopping again.

The whole system leaves me cold, so I'm happy with the manual locking option that I've chosen to fit. The other added benefit is that I can use low range for backing a trailer etc at very slow speeds and on a concrete/bitumen surface, without any transmission wind-up etc.

Hope this adds to the conversation.

Cheers

Roachie

>> they informed me that their grease gun is too large to get to the nipples on the front shaft.

So they dont inform ANY client of this that gets their car serviced there?? What a $10 grease gun from supercrap wouldnt be a good investment for them?

I would never go near that dealer again if they are that jewish

G'day Lads
Thanks for answering my query. I am sort of with it. What Roachy says is spot on, just that I am sort of confused with the old free-wheeling hubs that I had on my old Toyota and the auto hub technology on the Nissan. I really appreciate all those comments by the forum and I have certainly learnt something from the various comments. They say getting old is FUN but it is not fun when your old memory and brain does not comprehend. It's a Bugger! Thanks for your advice Truckster about the dealer but they didn't actually tell me they didn't grease the front shaft until I asked because I noticed the last time I put my car in for a service that the nipples weren't accessed but I think grease had been wiped on my universal joint nipples to make it appear they had been greased. I noticed a lot of people criticise Nissan for not living up to their expectations, and I certainly agree with a lot of the comments, however, I find the dealers themselves have a lot to answer for with in certain circumstances. My mate and myself now mark components that we now have to be serviced during a major service. Once again, Thanks everyone very much.
Regards The Major