Patrol GU 5th Gear Problems

G'day Trevor,
William is spot on....I've had to have mine changed too. The fact that the shaft has to be replaced is no surprise, as this was the part that was faulty in the first place. What happened was that the machining process failed to make the spline on the shaft long enough to go all the way through the inside of the 5th cog. I saw the cog and shaft that came out of my gearbox and there was sooooo much slop between the 2 items, I found it barely believable that they once belonged to one another.The outside teeth of the 5th gear is not the problem, only the inner spline area.
There is no aftermarket fix. I haven't had any dramas with mine since it was changed.
Good luck to your uncle mate.
Cheers
Roachie

Thanxs william as this effects my 2000 model 4.2 turbo as well, although i have been aware of the problem and have never towed in 5th gear unlike my poor old uncle. I will get him and myself to contact nissan with his and my vin no. first thing 2morrow. Mine has 208 k's on it now but his has only 106 k's. I might be pushing my luck as mine is still in tact.

Thanks Trevor,
Can you tell me if your overheating problems only occur when under a fair sort of load, or all the time? Mine only occurs occasionally and with the cooler weather coming soon, I may not be able to tell if I've been unsuccessful until next summer.

Sorry for hijacking the thread.

Roachie

Roachie my adress is TRJC@bigpond.com.au contact me for full breakdown if you wish. But the long and the short of it is my vehicle is rareley under 2.8 tonne then ther's the trailer, minimum 1.5 for small one and 2.5-3 for the big one. My beast overheats in just about all situations when i'm pushing it ( nearly always ), can do it nearly when I want it to. If I keep the throttle to less than 3/4 flat and keep revs to less than 3000 the problem is much better, but this means travelling at 70km/hr out west for long periods at a time. So I must get it fixed b4 I fall asleep behind the wheel. Cheers Trevor. P.S will keep you posted.

Kumanara, I totally agree regarding the after sales service nissan is showing in relation to the gearbox, it's just a shame they don't extend the same courtesy to those of us experiencing overheating problems as well. Overall am quite happy with most aspects of the vehicle, 208000 heavy towing k's and still going so can't complain too much. Regards Trevor.

How's it going,

I was in a similar situation last year, 5th gear letting go north of perth.
We werent towing anything but had the vehicle packed to the hilt.
Had the 5th gear/mainshaft replaced at Perth, the dealer we went to insisted that Nissan only supplied parts and I had to fork out about a grand to get it fixed

It was only when the exchange gearbox started playing up and we went to another dealer did we find out everything was covered.

To my surprise when I wrote a letter to Nissan on return to Sydney all labour costs were refunded .

Have to admit I was sceptical about getting money back that I had already forked out.

My Patrol is a 2001 3.0td an had 100000 on the clock at the time.

Hope your uncle gets his money back as well.

Glenn