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Cruiser diff into MQ Patrol

Tech Talk for Nissan owners.

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Cruiser diff into MQ Patrol

Post by pongo »

The reason being for the 4.1 ratio. the best i can get is 4.3 and do alot of hway kays.

Both are off set diffs, so may be okay.

Wheel bolt pattern is the same

what about:

Tail shaft bolts ?
Brakes lines, etc ?
spring widths ?
track widths ?

Any one done it before ?
any one want to donate a rear diff cheap?

Who feels like getting out the tape measure ?

May work the other way too, as a MQ patrol diffs are 4.3 or 4.6 std and are cheap as chips.
Last edited by pongo on Thu May 01, 2008 8:40 pm, edited 1 time in total.
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Post by udm »

hey pongo, ive got a rear diff off the cruiser (for sale btw) that you can use to take measurements if you want.
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Post by macca81 »

i forget where, but i think i read somewhere that someone put 60 diffs under an MQ as a straight swap... from what i gathered there was no need for any mods, but then, dont quote me on saying that...
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Post by jet-6 »

Ill have a set of spare 4.1 patrol gears mid next month, if thats will save some hassles?
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Post by chimpboy »

I thought patrol had a wider track by a bit, but I could be wrong.

Are 4.1 patrol diffs actually rare? In a GQ they are as common as mud, anyway.
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Post by cloughy »

Why not just put a 4.1 GQ H233 centre in the rear?
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Post by pigletracing »

2nd the GQ diff idea,but MQ also came out with 4.8's aswell,
if you are handy with a welder, why not just add spring saddles to
your existing mq difs some trailing arms & a panhard rod,you could
get all existing arms & rods off factory junk at any wrecka,then tak in the brackets.
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Post by benhl »

I can go 1 up on jet-6... I'll have a set of GU 3.9 CW&P gears for sale prior to tax time :armsup:
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Post by pongo »

sorry guys , its a MQ/MK patrol. looking at easiest and cheapest way to get some more legs.

May look into the GQ gears if the cruiser idea falls through.
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Post by nastytroll »

I through out 4.11 diffs for an mq awhile ago, came from a P40 engine patrol van.
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Post by badger »

leaf sprung gq diffs bolt straight in steering and all
and a gq cw&p will fit the small rear diff or run a h260 with gq gears.
people almost throw away both of these parts
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Post by pongo »

badger wrote:leaf sprung gq diffs bolt straight in steering and all
and a gq cw&p will fit the small rear diff or run a h260 with gq gears.
people almost throw away both of these parts
ahh k, So I can just replace the CW&P from a pretty mush common GQ Front ( ?) into the rear and keep spiders and LSD, etc. and will be sweet.

What can we do for the front. Although, cant remeber the last time i locked the hubs in :cry:

A bit confused atm with diff models, been a long week and screaming kids arent helping
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Post by pongo »

searched a bit more
Screwy wrote:in a nut shell.......

MQ/MK rear diffs have the same spine counts as the GQ fronts do.
The mq and GQ rears and gq fronts are the same physical size but different spline counts between rears...

so basically,
You can bolt a gq front centre into a rear mq housing/axles and you can bolt a MQ rear centre into the front GQ housing/axle/CVs
But an MQ rear centre is not interchangeable in GQ rear housings.... or visa versa.....
rear to rear is a no go due to axle splines. you cant change the axles over because gq diffs are wider....
mq fronts are a completely different diff.

if you change the mq rear into a gq front you need to do a knuckle swap to bring the tie rod to the front of the diff instead of the back as gq fronts are high pinion and mq rears are low pinion....

also the gqs only have 4.1s, most mqs have 4.6s so you will need to ensure correct ratio changes.

screwy
http://www.outerlimits4x4.com/ftopic116657.php.

I think i know of a gq front diff sitting round for a trial fit into a spare MQ housing i have here :armsup:

Looking like i may be able to find a 4.1 match for the front out of a 720

http://www.outerlimits4x4.com/viewtopic ... 85ea1a51cd
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Post by Rosey55 »

i'm confused, why don't you just use 4.1 ratios from a MK patrol, they're cheap as chips now days, it'd have to be easier if your really set on getting 4.1 ratios. Personally i'd keep the 4.3's and accept a little less top speed
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Post by WICKED »

Pongo,

I've got those diffs (MQ/MK 4.3,4.6 and LC 60 4.1) for sale.

I'm putting GQ leaf diff in my MQ. there is a thread in here about it some where. EDIT - its the same thread that screwy is quoted in...

Pongo call me if your confused and I'll try and confuse you a little more.... :D
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Post by 84mksd33t »

did u manage to sort out the 4.6 centres for me wicked? (landy from patrol4x4)

cheers :)
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Post by WICKED »

84mksd33t wrote:did u manage to sort out the 4.6 centres for me wicked? (landy from patrol4x4)

cheers :)
Haven't even looked into it. :oops:
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Post by adds »

Ive got an mq rear diff and its got arb lockers in it does any1 no if they will fit in the front diff off my gq and its got 4.6 gears
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Post by pongo »

84mksd33t wrote:did u manage to sort out the 4.6 centres for me wicked? (landy from patrol4x4)

cheers :)
do you have any 4.1 gears. maybe swap, lol
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Post by dattopimp »

I was thinkin of puttin GQ front diff under mine but aren't they a wider track? if they are they shouldn't bolt straight in. Plus the Mq has a wider chassis so wouldn't the springs not line up? I mainly want a GQ front for extra track width...and the cv's :)
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