SHAVING BOTTOM OF A GQ REAR DIFF

Post by **lukes4x4** » Tue Mar 23, 2010 7:40 pm

Has anyone ever shaved the bottom of the rear gq patrol diff that has been fitted with 4.88 ratio gears. if so have you got pics and how much extra have you gained ?
Thanks people ! cheers lukey....

Post by **WICKED** » Tue Mar 23, 2010 7:57 pm

Post by **morewheeldrive** » Wed Mar 24, 2010 10:00 am

Just a question. No malace intended but is this really worth it? I can see the point on a comp rig trying to get every inch of clearence possible but for a weekend warrior like myself should I even waste my life. How much extra clearence do u get and is it possible that this may damage the diff having less capacity to hold/cool diff oil? Again I'm not being a downer I'm just curious of the actual benefits.

Post by **Screwy** » Wed Mar 24, 2010 4:20 pm

morewheeldrive wrote:Just a question. No malace intended but is this really worth it? I can see the point on a comp rig trying to get every inch of clearence possible but for a weekend warrior like myself should I even waste my life. How much extra clearence do u get and is it possible that this may damage the diff having less capacity to hold/cool diff oil? Again I'm not being a downer I'm just curious of the actual benefits.

For an everyday truck.....

Definately not worth the hassle.

For a Truck used for heavy duty comps, then yeh every bit helps.

If you want more diff clearance for an every day truck, put 2 inch bigger tyres on it.

Screwy

Post by **lukes4x4** » Thu Mar 25, 2010 6:53 am

thanks wicked, but i think your diff is a H260, but i have the smaller one same as a front . does it have 4.88 ratio in it anywayz ? how did you do your drain plug ? cheers lukey

Post by **SuperiorEngineering** » Thu Mar 25, 2010 9:29 am

On my old Comp truck i hade both front and back done, i think it was about 20-25mm additional clearance you gain, i also did the H260 and it was about the same gain.
As mentioned probably not worth it on a recreational driver as you lose your drain hole so most guys wont wont that.
For a Comp truck you would be mad not to do it.

Post by **nastytroll** » Thu Mar 25, 2010 4:22 pm

I did the girls and it still has a drain plug.

Post by **Yom** » Thu Mar 25, 2010 5:00 pm

i can't see why you wouldn't do it for a daily driver if it didn't cause an oil supply issue inside the diff. im guessing oil would need to be changed more regularly as it would not last quite as long, perhaps a sump of some description could be added to the design - have seen these on jeep diffs where the owner wanted more oil capacity but the diff kept pumping it out the breather, so made like an expansion cylinder and this allowed the oil to circulate in the diff and chamber without the need for pumps etc.

Mind you I have only formed this opinion rather recently as my Jeep on 33"s has more or less the same diff clearance as a mates Patrol on 35"s. This is due to the Jeep's little diffs. And I do have to say that it has been a good thing to have the clearance in quite a few places. Depends on your terrain I guess but if I ever moved back to a patrol it would be something I'd consider as it would reduce the requirement for big tyres (which is becoming an issue in QLD).

comes down to what want from it i guess.

Post by **WICKED** » Thu Mar 25, 2010 8:33 pm

Ratios don't change clearance

Post by **lukes4x4** » Mon Mar 29, 2010 7:37 am

thanks everyone .... this is for a comp truck..... time for chopperty chop chop ! haha

Post by **oz cruisin** » Mon Mar 29, 2010 9:33 am

WICKED wrote:

Hey mate just curios about how you set up your 100 series bump stops.Plus what size lift and tyres do you run cheers Lindsay

Post by **(EST)MahviaDeTyrk** » Mon Mar 29, 2010 6:36 pm

SuperiorEngineering wrote:On my old Comp truck i hade both front and back done, i think it was about 20-25mm additional clearance you gain

Measured H233 rear axle today - really I don't undestand how won 1'' there

Me seems 10mm maybe - sounds sensless

please pick's how shave to won 1''

Post by **big red** » Mon Mar 29, 2010 9:39 pm

years ago i had a look at my H233B rear but the C/W was only about 5 or 10 mm from the bottom of the housing so i didn't bother shaving it.

Post by **Yom** » Mon Mar 29, 2010 10:17 pm

superior's truck used H260 in the back im pretty sure.

Post by **lukes4x4** » Tue Mar 30, 2010 7:12 am

don`t really know now ...... should i or shouldn`t i go chop crazy ? might have to measure up more accurate !

Post by **WICKED** » Tue Mar 30, 2010 8:11 am

oz cruisin wrote:
WICKED wrote:
Hey mate just curios about how you set up your 100 series bump stops.Plus what size lift and tyres do you run cheers Lindsay

it was a leaf sprung mq so how ever much lift lol There 80's b/s wuth a bracket on the chassis. I run 40inch treaps now.

Post by **SIM79** » Tue Mar 30, 2010 3:40 pm

WICKED wrote:
oz cruisin wrote:
WICKED wrote:
Hey mate just curios about how you set up your 100 series bump stops.Plus what size lift and tyres do you run cheers Lindsay
it was a leaf sprung mq so how ever much lift lol There 80's b/s wuth a bracket on the chassis. I run 40inch treaps now.

Pics

Post by **Auto-Craft** » Tue Mar 30, 2010 5:48 pm

Can gain between 16-19mm by doing this, and make it more slide friendly.

We have been removing the lower carrier stud and welding a nut internally and using a bolt with alloy washer to become the drain plug for the oil.

Post by **lukes4x4** » Tue Mar 30, 2010 6:41 pm

Thanks AUTO CRAFT

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