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3 inch lifted coils in a shorty GQ

Posted: Thu Nov 19, 2009 6:53 pm
by whaldo
will i have any problems if i do this ?? if so what and are they easy fixed etc cheers anthony.

Posted: Thu Nov 19, 2009 7:32 pm
by tye1986
you may have some vibration issues i put 15mm gear box spaces in an i have no vibrations but it is luck of the draw some ppl cant stop vibrations and some ppl just dont have them. you can also lenghten the lower control arms to straighten up your pinion angles... hope this helps

cheers tye

Posted: Fri Nov 20, 2009 4:43 pm
by KIWI
I ran 3" lift in my GQ and GU shorties. Didn't want castor bushes so ran drop boxes, and 16mm longer trailing arms with a slight vibration if the tailshaft didn't get a regular lube.

Posted: Fri Nov 20, 2009 4:57 pm
by Suspension Stuff
Gearbox spacers will sometimes be enough but I always recommend upper adjustable trailing arms. I don't recommend double cardin joints.

You can run longer lower trailing arms which will help correct the pinion angle however to fine tune it you need adjustable arms. If you get adjustable lower arms then you have a weak point being the adjuster.

If you get longer lower trailing arms you need to be sure that your tyres won't hit your rear guards when a tyre is compressed into the guard.

I have a customer who has a 6" lift with very little vibes but they are all different.

Shane

Posted: Fri Nov 20, 2009 6:34 pm
by SIM79
Be carefull with what coils you run as I though my rear was lifted 4 inches with 3 inch LWB coils but its now 6 inches!!

[QUOTE=sudso]Gday Simon, not sure what's going on with your link position at ride height.

Your overall bumpstop gap is 220mm including the 75mm ext.(145 + 75) That is actually around 6" lift over std height! given the std bump stop gap was around 70mm on GQ's when new.
[/QUOTE]

Posted: Fri Nov 20, 2009 8:43 pm
by zookimal
KIWI wrote:I ran 3" lift in my GQ and GU shorties. Didn't want castor bushes so ran drop boxes, and 16mm longer trailing arms with a slight vibration if the tailshaft didn't get a regular lube.
How do you find the drop boxes with the 3in lift?

Posted: Fri Nov 20, 2009 8:57 pm
by zookimal
zookimal wrote:
KIWI wrote:I ran 3" lift in my GQ and GU shorties. Didn't want castor bushes so ran drop boxes, and 16mm longer trailing arms with a slight vibration if the tailshaft didn't get a regular lube.
How do you find the drop boxes with the 3in lift?
Found my answer :D

http://carl.outerlimits4x4.com/ftopic16 ... hlight=3in

Posted: Sat Nov 21, 2009 4:57 am
by KIWI
I think Shane sells rubber castor bushes? We can't get the rubber bushes here, and the OME etc are crap, you lose flex, and they crack/split in no time at all

Posted: Sat Nov 21, 2009 9:45 am
by Suspension Stuff
If you get 3" LWB base coils then the rubber castor correction bushes won't give enough castor because you will then have a 4" lift.

In my opinion, if you don't want drop boxes the best solution is new radius arms.

If you actually have 2" lift LWB coils giving a 3" lift then the rubber castor correction bushes are a great solution considering they flex better then stock bushes.

Always remember that no 2 vehicles are the same.

Shane

Posted: Sat Nov 21, 2009 9:48 am
by Suspension Stuff
By the way. Drop boxes sit closer to the centre of the vehicle on a shorty so they do reduce ramp over angle in some situations. I'd still run them though and will be running them on my LWB due to better radius arm angles meaning better rock climbing ability.

Shane

Posted: Mon Nov 23, 2009 9:08 am
by ziggy_170
I've got a 3inch lift with drop boxes and 16mm longer lowers. i have no vibration whatsoever