D4 air struts on D3

[Ean Austral]

Gday All , just wondering if the air struts and shocks off a D4 fit a D3 and if there is any noticable difference if they do fit.

Thanks and Cheers Ean

[Graeme]

I fitted MY09 shocks to a MY10 D4 - interchangeable! D4 shocks are firmer although MY12+ aren't quite as firm as MY10-11.

[Narangga]

Intending to upgrade to a D4 one part at a time Ean? :angel:

[Ean Austral]

Can't fool some people ;)

Cheers Ean

[carlschmid2002]

The control arms are different but I believe the shocks are the same. The bushes are the same to.

[BobD]

My Indie put aftermarket Delphi D3 rear shocks on my D4. They fitted OK but the valving is so soft that the car wallowed more than it did with the aged originals. I have now reverted to OEM 2012 plus shocks front and rear. However, the rear is still pretty soft to my way of thinking. Not as bad as the D3 ones though.

[Narangga]

Can't fool some people ;)

Cheers Ean

Sounded 'fishy' to me. :wasntme:

[PerthDisco]

Gday All , just wondering if the air struts and shocks off a D4 fit a D3 and if there is any noticable difference if they do fit.

Thanks and Cheers Ean

Keep us updated Ean if you do this update. I've got this on my to do list.

Seems the RRS front LCAs are a (heavier duty) preference also by some.

Otherwise is there any other difference between the D3 and D4 suspension?

[Graeme]

The D4 ball joints and their angle are different to the D3 as the D4 geometry was altered to provide a lower roll centre.

[PerthDisco]

The D4 ball joints and their angle are different to the D3 as the D4 geometry was altered to provide a lower roll centre.

So would you just automatically order the D4 LCAs and struts to get this upgrade?

Never quite understood the RRS LCA argument as what was heavier duty about them over D3?

[LandyAndy]

I did read somewhere the D3/D4 "armoured" factory builds run these.
I guess they are heavy duty vehicles built for diplomats etc.
Andrew

[jonesy63]

I did read somewhere the D3/D4 "armoured" factory builds run these.
I guess they are heavy duty vehicles built for diplomats etc.
Andrew

I also read that the armoured models don't have an offroad height - which is why I never pursued looking further into getting a GVM increase. :-\

[Graeme]

So would you just automatically order the D4 LCAs and struts to get this upgrade?

Never quite understood the RRS LCA argument as what was heavier duty about them over D3?
I don't know how much of a difference the D4 geometry would make but certainly wouldn't mix D3 and D4 LCAs. However if fitting D4 shocks for their firmer ride then perhaps beneficial to fit D4 LCAs when the need arises to get the full D4's handling improvement package.

My understanding is that the RRS bushes are firmer for more precise handling but may not endure quite so well the greater movement anticipated for Disco suspension.

[~Rich~]

Speaking recently with my LR mechanic he mentioned that RRS seem to wear out their shock absorbers in less than 1/2 the life of a D3/D4.
Maybe something to do with the shorter wheelbase.

[Fatso]

Any one know what the air pressure is in the D3 RRS suspension struts ??

[Graeme]

Speaking recently with my LR mechanic he mentioned that RRS seem to wear out their shock absorbers in less than 1/2 the life of a D3/D4.
Maybe something to do with the shorter wheelbase.
Perhaps they are more obviously worn-out due to the normally firm ride and less bump-stop clearance.