GU c.v.s to G.Q housing

Joined: 14 Jan 2003 Location: Rockhampton, Qld.

As anybody done this successfully? the inner axle splines are the same, so was thinking of using GQ axle. The swivel hub area might be tight but could always diegrind Twisted Evil

Have yet to strip my axle and trial fit, so if what i have said so far is crap, let me know Very Happy

Joined: 24 Oct 2002 Location: ACT

I think the bell is waaaaaay too big Very Happy

Joined: 14 Jan 2003 Location: Rockhampton, Qld.

cheers wendle, yeah g.u. bell is huuuge(had a look). so is anybody doing stronger c.v.'s for nissan's yet or are they only available for weak toyotas Very Happy

Joined: 14 Jan 2003 Location: Rockhampton, Qld.

cheers wendle, yeah g.u. bell is huuuge(had a look). so is anybody doing stronger c.v.'s for nissan's yet or are they only available for weak toyotas Very Happy

Joined: 22 Nov 2002 Location: Townsville/Middle Swan WA

core engineering do GQ cvs

Posted: Tue Feb 03, 2004 6:58 pm

cam wrote:

cheers wendle, yeah g.u. bell is huuuge(had a look). so is anybody doing stronger c.v.'s for nissan's yet or are they only available for weak toyotas Very Happy

Give Richard at 4x4 Engineering a call, he is the agent for CORE cv's and beadlocks etc, 07 3344 1181. Located at Acacia Ridge in Brisbane, but can send anywhere.

Joined: 23 Oct 2002 Location: Melbourne, Australia

Also give Cheezy a ring, 03 9761 8111

Joined: 04 Nov 2002 Location: Rockingham W A

Is anyone making uni joint axles for GQs like the ones you can get from the states for yota axles

Joined: 14 Jan 2003 Location: Rockhampton, Qld.

for those that are interested 4x4 engineerings c.v. are $660 a side, haven't rung cheezy yet but will do as i get closer to buying.thanks all

Joined: 24 Oct 2002 Location: ACT

duncan wrote:

Is anyone making uni joint axles for GQs like the ones you can get from the states for yota axles

about 12 months ago someone started drawing up a replacement knuckle for the GQ axle that would allow room for a dana 60 u-joint and stub shaft. I am not sure how far they got with it though?

Joined: 06 Feb 2004

No the GU CV won't go into the swivel hub as the whole GU CV is not only larger diameter (9-10mm) but larger in length as well so the whole unit ends up being about 10mm longer than a GQ CV/axle. I have tried to do this swap years ago when we got new work GU Wink

. Also the GU has 1 more spline on the axle that slips up inside the CV central star to give it extra strength (28 instead of 27).
I also made up some rings out of 4140 to put over the outside CV bell on a GQ and ground out the hub to clear, the cage still broke though and the joint dis assembled itself.

The only real way you may be able to get around this is to weld the whole GU swivel hubs into a GQ housing (after grinding the old ones out of the GQ housing - they look the same, and use the hubs and CV's etc to get it working.

I can't ever see a uni style joint being as strong as a CV (size for strength). CV's may break every now and then, but there is no way a uni of that diameter would be very strong. Dana 60 front joints are massive and also have massive swivel hubs to accomodate. A CV the diameter of the Dana 60 joint would be in a very big truck. Also a CV usually breaks because of the turning angle which runs the balls out into the weak part of the joint - this is a lot more angle than you could get out of a U joint. I think if you limited the steering angle on CV's to that of what you would get with a u joint you would hardly ever break one.

Pete

Joined: 24 Nov 2002 Location: bacabugari

just going off at a tangent a bit here...is the mq knuckle and the gq leaf knuckle the same?
shane

oh yeh, welcome to the forum pete Very Happy

Joined: 06 Feb 2004

The GQ leaf knuckle i think are very similar - they bolt on to the housing using the same swivel pin bearings. They are definately interchangeable. I think the GQ leaf may have the steering arms in a slightly different position than the MQ or the rod ends may be the opposite way up compared to an MQ ie. on top instead of underneath. Easiest way is to climb under a truck in a carpark. Also GQ's had a larger wheel bearing outer race, but that is dependant on the stub axle... the stubs are also interchangeable between models too.

All in all, the MQ hubs will go on a GQ or visa versa. GU is the only one not common in size... i am pretty sure they have the same wheel bearing and swivel pin bearing type as a GQ though.

Joined: 19 Dec 2002 Location: Sydney

Quote:

All in all, the MQ hubs will go on a GQ or visa versa. GU is the only one not common in size... i am pretty sure they have the same wheel bearing and swivel pin bearing type as a GQ though.

GU also seem to have the kingpin bearings at different angles when compared to the GQ the bell ends of the diff seem to be differnet

Joined: 24 Oct 2002 Location: ACT

ozy1 wrote:

GU also seem to have the kingpin bearings at different angles when compared to the GQ the bell ends of the diff seem to be differnet

yes, this is a very important improvement and took away a lot of the silly little handling quirks built into the GQ axle....

Joined: 19 Dec 2002 Location: Sydney

Wendle wrote:

ozy1 wrote:

GU also seem to have the kingpin bearings at different angles when compared to the GQ the bell ends of the diff seem to be differnet

yes, this is a very important improvement and took away a lot of the silly little handling quirks built into the GQ axle....

so what your saying, the GU diffs under a GQ will improve the handling? how much so and in what ways?

Joined: 12 Sep 2003 Location: Gold Coast

GU diffs give u a better turning circle...and are alot stronger.. Cool

Joined: 24 Oct 2002 Location: ACT

ozy1 wrote:

Wendle wrote:

ozy1 wrote:

GU also seem to have the kingpin bearings at different angles when compared to the GQ the bell ends of the diff seem to be differnet

yes, this is a very important improvement and took away a lot of the silly little handling quirks built into the GQ axle....

so what your saying, the GU diffs under a GQ will improve the handling? how much so and in what ways?

the ackerman is closer to true, and the kingpin rake (in the camber plane) is much, much friendlier towards wide rims and tyres. a friend has gu gear under his gq and, compared to others, it corners like a race car...

Joined: 19 Dec 2002 Location: Sydney

thanks for that, will be doing alot more research on this, did he have many troubles fitting them under?

Joined: 24 Oct 2002 Location: ACT

straight in. keep the GQ drag-link and panhards.

Joined: 01 Nov 2002 Location: Sydney. NSW Australia

so basically a bolt in swap?? or does steering etc need to be modified?

Joined: 19 Dec 2002 Location: Sydney

i thought that the steering arm was a different length because the diff is a bit wider

Joined: 24 Oct 2002 Location: ACT

the gu pitman arm taper is upside-down, so you can't use the gu drag-link, the gq drag-link is fine. the gu diff is roundabout 28mm wider, so half of that is the difference in length. you would be an incredible spastic if you were swapping in a gu axle for strength and keeping the stock steering links anyway.

Joined: 19 Dec 2002 Location: Sydney

yeah, i thought it would be better off gettin new steering links made up, im still researching the idea, and talkin to an engineer next week some time.

Joined: 24 Nov 2002 Location: bacabugari

brent and john at www.wizardperformance.com.au have both fitted GU axles to their GQ's and can make the bits you need.

Joined: 24 Nov 2002 Location: Melbourne

Taper on GU rod ends is slightly different to GQs. Use the ends that came with the 4by.

Bazzle

Joined: 24 Oct 2002 Location: On the end of the phone

Taper on GU is different and tierods on GU are 20mm and GQ are 22mm. We taper ream the pitman arm on a GU box and the taper on the knuckle to a GQ tierod. As for the GU front, the turning circle is better, the width is better, the CV's are stronger. We have twist tested our GU strengthened CV's against Dana 60 uni's and they are stronger. We are doing a shyt load of conversions with exelent results. Our biggest seller is GU front diff with twin shocks and hydro bump stops.

Joined: 19 Dec 2002 Location: Sydney

Cheezy4x4 wrote:

Our biggest seller is GU front diff with twin shocks and hydro bump stops.

is there any chance of a few pics of this set up? plz?

Joined: 24 Oct 2002 Location: On the end of the phone

My site will be up verry soon and will have pics of the set up. Shocked