Outer Limits 4x4 Board

I have helped a dude here get some new C & P's for a GQ patrol 4.2

One supplied from here for the rear is 4.636 ( 51 / 11 )
The one from Oz for the front is 4.625 ( 37 / 8 )

This shouldn't cause any problems ??

The supplier here said that the 4.636 is from a 2.8 turbo GQ.. I thought they were all 4.625 ?

HELP

is the patrol a wagon/shortie?
are both ring gears 9.25"?

His truck is a shorty

But he's lowering the ratio to fit bigger tyres.
Both C & P supplied are 9.25 ??

believe it or not, some trucks use a slightly higher ratio in the front, for to stop back end overtaking down steep hills (accelerating pulls truck straight. )and fer better pull round corners. I have no idea if this is the case here. worth considering, tho, christover

my calculator makes it a 0.2% difference. so at 1000k front tries to go 1002k. I personally would not be cocerned, but I aint a mechanic/engineer. christover

i think it wil lbe fine, it just seems weird...
REason I asked if they were both 9.25", is that one may have been some oddball H260 gearset?

Compared to the difference in distance travelled just from the left side of the vehicle to the right on any vehicle that turns corners, the difference you'd be getting front vs back would be completely insignificant.

Assuming you only engage the front diff when off-road, I don't see how it could matter one little bit. If you were running permanent AWD it might matter more.

Just my 2 cents worth. (nb Those are Australian cents.)

I do agree that it seems weird, and if it were me I'd be trying to get an exact match... but I am a bit uptight.

Jason

ps if anything it will enhance the vehicle's ability to erode and damage the surface of the earth, which is after all the point of 4WDing... so it's a good thing!

it's insignificant.

there are 4WDs out there with factory gears with greater differences front/rear.

dumbdunce wrote:it's insignificant.

there are 4WDs out there with factory gears with greater differences front/rear.

exactly, not to mention different tyre wear rates.

The numbers sound so close its not going to technically an issue. But if you put them side by side they look so different its hard to get you head around the actual ratios being so close

Considering hes paying $600 per C & P i am going to try and get a matching set.

I was hoping someone knew why Nissan did this ???

the 4.636 is out of a navara rear and the 4.625 is out of a 2.8td patrol.
the navara rear will also fit a GU .

big red wrote:the 4.636 is out of a navara rear and the 4.625 is out of a 2.8td patrol.
the navara rear will also fit a GU .

Thanks now I see why this may have happen. Interesting, the local supplier mentioned he has sold some 4.636 for a replacement in a 2.8td.

Does this automatically mean that the Navara 4.636 C&P will fit onto a GU carrier ??

My thoughts are the 51 / 11 C&P would be stronger than the 37 / 8 anyway, so it may not be such a bad idea to run them.