Puma HD Springs Question

[ScottyD]

G'Day All,

Just fitted Heavy Duty Springs all round on my 2011 110.
The problem I have now is that the Drivers Front Corner is quite high and the Passengers Rear is quite low. The other two corners look as they are suppose to be. The net result is my car leans to the left.

I just checked them again, they are the correct springs (according to the list below) and they all seem seated correctly.

Springs purchased (Woodhead? [was written on the springs] Brand):

FRONT COILS
NRC 9448 RHF BLUE/RED
NRC 9449 LHF YELLOW/WHITE

REAR COILS
NRC 6904 LHR RED/GREEN
NRC 6389 RHR RED/RED

I assumed that RHF = Driver Front, and LHR = Passenger Rear.
The list above I found on an aulro and defender2.net forum, and confirmed it on multiple parts sites.

What have a done wrong? Any ideas?

I finished installing them about 24 hours ago and in the order Passenger Rear, Driver Rear, Passenger Front, Driver Front. Do I just need to wait for them to settle a bit?

Bit worried...

Thanks!

[rick130]

Did you measure the free lengths before installing and check against the published specs ?

FWIW they are the right part #'s, and there's 1/2" difference in free length between right and left sides with the drivers side taller.

[ScottyD]

Did you measure the free lengths before installing and check against the published specs ?

FWIW they are the right part #'s, and there's 1/2" difference in free length between right and left sides with the drivers side taller.

Thanks rick130.

No I did not measure them before I put them on, I assumed checking the part numbers a million times was enough.

I suppose if the drivers side is a taller spring, then I cannot have them the wrong way around otherwise you would expect the opposite to happen.

I think I will have to put the standard rear's back in, and see if the front drivers side is too high. At least then I will know if there is something wrong with the front drivers spring or the rear passengers spring.

[tonic]

I am very much a beginner in all this so please check my idea with others, but, I have heard that with some springs if going higher you have to get an adjustable panhard rod to allow for the new height.

Red it somewhere, as I said, check my idea with others.

[Allan]

I am very much a beginner in all this so please check my idea with others, but, I have heard that with some springs if going higher you have to get an adjustable panhard rod to allow for the new height.

Red it somewhere, as I said, check my idea with others.

Just a dumb question but, as a beginner Why is have you posted so often????????????? oops missed the edit.

Allan

[rick130]

I am very much a beginner in all this so please check my idea with others, but, I have heard that with some springs if going higher you have to get an adjustable panhard rod to allow for the new height.

Red it somewhere, as I said, check my idea with others.

The reason for that is that a Panhard rod swings through an arc as the suspension is cycled. This pulls the axle housing slightly sideways as the suspension moves up and down.

Having said that, the springs Scotty has used are standard 110/130 HD springs as fitted to most pre '02 Defenders and they all worked fine without an adjustable Panhard Rod.
The amount of change with the new static ride height is well within Land Rovers legendary build tolerances IMO.

If you are up at around 125mm between bump stops you might have to do something, but with a winch and bar on the front you'll be lucky to be higher than 65mm, maybe 70mm between the bump stops with those springs.

[oldyella 76]

Watch your warrantee as I was told that if I put H/duty front springs in my 2012 defender I would void my warrantee.
Lindsay.

[justinc]

G'Day All,

Just fitted Heavy Duty Springs all round on my 2011 110.
The problem I have now is that the Drivers Front Corner is quite high and the Passengers Rear is quite low. The other two corners look as they are suppose to be. The net result is my car leans to the left.

I just checked them again, they are the correct springs (according to the list below) and they all seem seated correctly.

Springs purchased (Woodhead? [was written on the springs] Brand):

FRONT COILS
NRC 9448 RHF BLUE/RED
NRC 9449 LHF YELLOW/WHITE

REAR COILS
NRC 6904 LHR RED/GREEN
NRC 6389 RHR RED/RED

I assumed that RHF = Driver Front, and LHR = Passenger Rear.
The list above I found on an aulro and defender2.net forum, and confirmed it on multiple parts sites.

What have a done wrong? Any ideas?

I finished installing them about 24 hours ago and in the order Passenger Rear, Driver Rear, Passenger Front, Driver Front. Do I just need to wait for them to settle a bit?

Bit worried...

Thanks!

id use 2 nrc6389 on the rear, i had to do that to level out my 110.

jc

[ScottyD]

id use 2 nrc6389 on the rear, i had to do that to level out my 110.

jc

Thanks jc! Nice to know I am not alone.
Just did some additional reading, did you use the NRC9448, 9449 combination on the front, or just the 9448? There seems to be a few threads around the net recommending people just to use 9448's on the front and 6389's on the rear.

I will be ordering an additional NRC6389 on Monday anyway Will update this thread with the results. If anyone else has any more suggestions that would be great.

[rick130]

I've never used them but companies like ARB use urethane packers to trim out the ride height.

Might be cheaper than a complete spring.