Nissan Patrol 4.8L Manual Transmission

Submitted: Wednesday, May 14, 2014 at 06:36
ThreadID: 107768 Views:3861 Replies:4 FollowUps:11
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Dear Friends

I've problem with my Nissan Patrol 2002, 4.8L manual gears. The vehicle stopped in the middle of road and not moving at all. It is giving a grinding sound while the clutch is not pressed. All mechanics say that It's gears has been damaged.....

My Question is :-

I want to replace its gears with the gears of Nissan Patrol, manual, 2006, 4.5 L ?

Is it possible ? recommended ? or feasible ?

Any valuable suggestions shall be appreciated.

Kind Regards

Waqas
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Reply By: tappets - Wednesday, May 14, 2014 at 07:58

Wednesday, May 14, 2014 at 07:58
Safest thing would be to swap gearboxes...sounds like one of the shafts have failed...and there is nothing worse than to have chunks of metal pushed through the gears. Probably a lot of damage done... You would have to remove the gearbox and pull it apart anyway and from what I've heard that you will need three man to lift it. they are really heavy. You'd have to check that the gears are compatible. If you want to change boxes with an earlier one. Check the stud pattern, for the bell housing to mate with the block. measurements and fit for the spline to flywheel, yolk/uni joint compatibility and linkages/gear lever. and mountings. Check with a Nissan wreckers they should be able to tell you right away. Good luck. sounds expensive.
AnswerID: 532441

Follow Up By: Waqas A - Wednesday, May 14, 2014 at 14:24

Wednesday, May 14, 2014 at 14:24
Thanks dear.....
The Torque of 4.8L engine is 420 Nm,
while the torue of 4.5L engine is 350 Nm,
Justed want to ensure if i can use 4.5L gears on 4.8L
physically it can be fitted, but will any be any problem practically to do so ?
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FollowupID: 815723

Follow Up By: olcoolone - Wednesday, May 14, 2014 at 15:59

Wednesday, May 14, 2014 at 15:59
Best thing to do is check the part numbers of the complete gear box, if the last digit is out chances are it will be something minor like a electrical plug..... the further the part number has changed the more major it becomes.

Can't see Nissan like other manufactures doing major changes with the box from a 4.5 - 4.8.

Or the other thing is find a place who sells gear sets, if there part numbers are the same between to tow boxes chances are they are the same.

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Follow Up By: Member - Keith P (NSW) - Wednesday, May 14, 2014 at 22:04

Wednesday, May 14, 2014 at 22:04
Its the input shaft....breaks just at the splines near the clutch plate...especially if its had a hard time apparently.
There is a thread on it in the Patrol forum...but I.m stuffed if I can find it atm.
Also from reports there...the gearbox out of a late ZD30 will fit ....just needs something removedaround near starter area of bell housing.

HTH

Cheers Keith
Nothin is ever the same once I own it ...........

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Reply By: Robin Miller - Wednesday, May 14, 2014 at 08:09

Wednesday, May 14, 2014 at 08:09
There isn't a 2006 4.5 Waqas - , if 2006 you mean the last of the 4800 manuals.

The change would be ok , they are pretty tolerant , we broke another recently and the kids changed it easter sunday night , couldn't find the exact one so we used one from the 3 lt diesel , gears were close enough as car has extra power.

The box was very low km's think about $700 (came out of a CRD 3lt that had an engine blowup)

Ours just stopped , but on a serious hillside - it had broken its output drive shaft and made no noise - some have also stripped spline which could also make a noise.
Robin Miller

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AnswerID: 532443

Follow Up By: uppy - Wednesday, May 14, 2014 at 10:35

Wednesday, May 14, 2014 at 10:35
Hi fellow 4.800 owners, you have got me worried! about the gear box on the 4.8 ,my is a 2005 model and is running fine .What are the tell tale sign that I should look for .Cheers Uppy
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FollowupID: 815712

Follow Up By: Robin Miller - Wednesday, May 14, 2014 at 12:06

Wednesday, May 14, 2014 at 12:06
Nothing to worry about from 2002 on uppy , they are seriously strong , thats why we use them.

Just 2 tips
1/ its was designed for 185kw , so don't put 400+ kw through them , thats why ours suffer.

2 , there are 2 rubber breather hoses that run under exhaust , they are easily torn off when having fun.

A/ Check regularly , as sucking water into the box isn't good.

B/ The metal pipes they connect to can be twisted and hoses shortend a little to put them more out of harms way.

C/ They like synthetic oil as well.
Robin Miller

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Follow Up By: Emerging I.T. - Wednesday, May 14, 2014 at 12:14

Wednesday, May 14, 2014 at 12:14
I knew you would have this post under control Robin, well done.
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Follow Up By: uppy - Wednesday, May 14, 2014 at 12:39

Wednesday, May 14, 2014 at 12:39
thanks makes me feel better .love the 4.8
cheers uppy
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Follow Up By: Waqas A - Wednesday, May 14, 2014 at 14:22

Wednesday, May 14, 2014 at 14:22
Thanks Robin.
The Torque of 4.8L engine is 420 Nm,
while the torue of 4.5L engine is 350 Nm,
Justed want to ensure if i can use 4.5L gears on 4.8L
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FollowupID: 815722

Follow Up By: Robin Miller - Wednesday, May 14, 2014 at 16:14

Wednesday, May 14, 2014 at 16:14
The torque of our 4.8 is well over 900nm and the gears are fine, but we have twisted an input shaft and snapped an output shaft when driving 37" tyres so you will have no issue guys.
Robin Miller

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Follow Up By: Mike S2 - Monday, May 19, 2014 at 20:30

Monday, May 19, 2014 at 20:30
Hi Robin,what tricks have you done to the 4.8 to get those nm figures and what power output are you getting,regards,Mike
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FollowupID: 816083

Follow Up By: Robin Miller - Tuesday, May 20, 2014 at 14:24

Tuesday, May 20, 2014 at 14:24
Basically Mike its just a great big turbo running high Boost and 4" inlet / outlet system.

Uses a Haltech ECU which can have multiple maps , 1 of which effectivily disconnects the turbo and can run LPG also (keeps it legal in that mode).

Flywheel kw are 400 now (300 rw) which is down from what is was (450kw) as we couldn't afford the parts to keep the valves under control at over the limit revs.

I don't reccomend this to anyone as Nissan may be strong but its to easy to snap something somewhere in the drivetrain.

Its been interesting though , while this car is rough as guts and has a snappy 3 plate clutch we have compared it (getting up difficult places) to my daily driver 2010 auto 4800 and I have to say that brute force does take you further.



Robin Miller

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Reply By: krimnl - Sunday, May 18, 2014 at 18:47

Sunday, May 18, 2014 at 18:47
4.8 gearbox has unique gearing. you cannot use gears from any other patrol gearbox.
you would be better off replacing the entire gearbox. I use brand new genuine nissan ones in my race car. they are not stupidly priced.

AnswerID: 532705

Reply By: krimnl - Sunday, May 18, 2014 at 19:06

Sunday, May 18, 2014 at 19:06
4.8 gearbox has unique gearing. you cannot use gears from any other patrol gearbox.
you would be better off replacing the entire gearbox. I use brand new genuine nissan ones in my race car. they are not stupidly priced.

AnswerID: 532708

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