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Ball Joint Spacers

Tech Talk for Ford, Mazda, Daihatsu & Makes that currently dont have a home.

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Ball Joint Spacers

Post by Chunked »

Bought a 2" lift kit (minus torsion bars) from www.suspensionstuff.com.au ($890 + free postage interstate).

Read around about ball joint spacers on this board (to reduce the amount I'd have to wind up the torsion bars) and there isn't much info. For those here that have them, can you remember the measurements and type of steel required? Was also wondering if I should have top/bottom spacers or both.

I drive an F300 if you need to know.
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Post by MightyMouse »

Spacers are in compression so they aren't subject to any great load - mild steel is fine.

The thickness you can space the lower arm up is pretty limited as the outer cv starts touching the lower control arm IIRC about 40mm. Remember the vehivle sits on the lower control arm so a spacer ther effects lift.

The top arm is quite different in purpose - it actually provides more droop travel by spacing the arm up away from the bump stop /chassis. Allignment needs to be done after as you have lots of camber.
( usual disclaimers )

It seemed like a much better idea when I started it than it does now.
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Post by Chunked »

So a 25mm plate on the bottom arm will lift the front accordingly and I'll only have to wind up the torsion bars 25mm odd to even out the lift in the rear?


Still need a wheel alignment after that?
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Post by Newtothefourbeworld »

from my understanding if you do the bottom you should do the top as well other wise the control arms are no longer factory spaced as such
80 Series 4.2TD:
4" Lift on 35's, F+R Air Lockers, F+R Barwork, Sliders, Warn Hi-Mount
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Post by MightyMouse »

No that's not a requirement. The geometry can be corrected by allignment if required - not perhaps ideal but do-able.

I have a top spacer fitted for travel and it actually provides better camber angles on the road, but at the expense of a bit more tyre wear on the inside.

And a 25 mm bottom spacer produces 25 mm of lift without bar adjustment.
( usual disclaimers )

It seemed like a much better idea when I started it than it does now.
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Post by monmendoza »

I placed a 25mm spacer on the top only. Then I ask the
wheel shop to do professional alignment. MM Im curious
about the 25mm bottom spacer, How do you place it?
Do you have a picture of one installed? Or at least
a diagram where to install it? tia


Here is a picture with the top spacer installed. I hope it helps. :P
Image
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Post by MightyMouse »

Goes between the outer ball joint and the lower control arm - so the control arm is lifted in relation to the wheel and as the rest of the vehicle is attached... up it goes !

I've got custom arms on now ( longer and with the lift built in ) so i dont use them, but i did.

I actually made some that were too thick and discovered the CV issue directly :oops:
( usual disclaimers )

It seemed like a much better idea when I started it than it does now.
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Post by Goatse.AJ »

So what's the go as far as legality/engineering on these Ross?
bru21 wrote:What happens in goat, stays in goat!
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Post by MightyMouse »

I'd say they are illegal..... however if your talking shades of grey then they are more legal than winding up the torsion bars as ths directly breaches the percentage bump/droop regulation.

So overall you still have to worry about total height increase ( tyres and lift ) and the grey area of the spacer.

But they are easily fitted ( or removed ) give you lift without bar adjustment and are quite hard to spot. As a side benifit the outer ends of the lower control arms are higher, unlike cranking up the bars where all that happens is the inner end of the bars lift.

So if your wanting a legal modification then I'd suggest a discussion with an engineer - and then expect bad news..... but...... ?
( usual disclaimers )

It seemed like a much better idea when I started it than it does now.
Posts: 48
Joined: Tue Mar 31, 2009 10:29 am
Location: Newcastle

Post by Chunked »

So can anyone remember the measurements for their top/bottom spacer?
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