GU patrol gearbox rear tailshaft seal. The seal where the back tailshaft comes out

[Bundu]

Those guys clearly Fd up when they thought they can get away with a single lip seal. And, did they actually replaced it in the second run as they claim????
This is once again a special seal and I can describe it to you in detail. Even a twin lip will not just work in my opinion.
See http://www.atocauto.com.au/Products.asp?cat=73

[Lewy]

Wow that's an awesome right up! Cheers. I was going to go to Nissan on way home and get a seal and take a look at doing it tomorrow now after reading this! Could there be anything else causing it to leak?

Again cheers for your help
Lewy

[Lewy]

Witch one of these seals are you referring too? Could I get it from a Nissan dealer or anywhere else in se QLD lol.

[Lewy]

Gday Bundu, Would you happen to know the size of the F nut :-) Its bigger than anything i have so Ill need to go get one this morning..

Cheers Lewy

[happygu]

Great info Bundu

[Bundu]

I think it is a 32 socket if I don't have it wrong. Take a shifting spanner, and size it to the nuts' flat sides, an measure gap on shifting with ruler = socket required size. You will need to remove the brake drum assembly as well before you take out that seal. Do not try to undo the H brake cable at the drum, about 30cm stream up of where it enters the drum there is a pivot mechanism from where you just unhook it easy, allow slack on the cable. Where you gonna get it in Aus, I don't know. QLD is unfamiliar territory to me. I'm from Africa which is a problem to start with that's why I refer to the agents, you prob have more options but get the right stuff. Make sure that when you replace that seal you dont damage it in any way. You will probably smile at my advice now: Buy some KY jelly from the pharmacy, lube the circumference of the seal and the seat on the box. Not too much, you want to save some of that stuff for other purposes..... like fitting pipes etc. Tap it in gently with a wood chock. Once you are done there, fill the V between the twin lips with CLEAN grease. Now carefully re-install the flange. The seal has this taper ear (tulip) shape that will face you once installed. Now lube that with some normal gearbox oil, just with your finger. Note that on the back side of the flange ( splines side) there is what looks like a washer. Make sure that is clean because that seats against that oiled tulip. Get the torque spec of that F.Nut and tighten to spec. Hope your problem is solved after that. you can grab that output shaft and wiggle it, there should be no play on it before you mount the flange. Apart from that make sure you have only that amount of oil in the TC as required. Thus fill to bottom level of filler plug. Drive your car UP and DOWN a fairly steep hill an check level again on level ground, fill again if required. If you have auto hubs, use ATF.
Click that Thanks Thumb up button if you think it is good. It is a measure of quality advice to me.

[Lewy]

Great advice! And I just happen to have some KY (for fitting pipes of course. ;-).) thanks so much for your help after I'm done Ill take it for a drive up to toowoomba that will test it all out :-).

Cheers Again
Lewy.

[Bundu]

Could you manage to replace that seal yet, oil leakage solved? I hope for the best.
Im still stuck with my open TC box. I was advised by the manager to replace the entire box as only option, after I inquired about a price for a single gear at our local NISSAN dealer. MASSIVE price difference there. Africa at its best. Next time I will take the KY along and ask him if his DK can touch his arse. Well mabe O-ring grease instead.

[threedogs]

"TAP in the new using the old, plenty of oil, grease
whatever so it slips over pinion shaft without tearing or scratching

[Lewy]

Yep all fitted up and no leaks! I used KY and it worked a treat!! Got some pipe fitting happening tonight I'll be using it for too ;-) I used the double lip seal that is listed for the GQ and it fitted in really well. Thanks heaps for your help it was bloody good and much appreciated.