Front shock dimensions

jon goalen · **Posted:** Thu Nov 21, 2013 5:51 pm

Anyone out there know the dimensions eye to eye open and closed of a front shock?
Or have one off the vehicle that they can measure?
Any other specs of the shock would be gladly received too.
I have a plan for replacements.

spongie · **Posted:** Thu Nov 21, 2013 6:38 pm

Have one I can measure Saturday

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davebevan · **Posted:** Thu Nov 21, 2013 6:39 pm

385mm closed, 595mm extended; between centres.

jon goalen · **Posted:** Sat Nov 23, 2013 8:52 am

Thanks Dave.

mowcop · **Posted:** Sat Nov 23, 2013 10:00 am

Any one got the same info for the rears on a gs?

spongie · **Posted:** Sat Nov 23, 2013 10:53 am

Terrafirma big bore defender 110" +2" IIRC TF224 fit rears on GS

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jon goalen · **Posted:** Sat Nov 23, 2013 2:58 pm

I think that should be TF 124

mowcop · **Posted:** Sat Nov 23, 2013 3:28 pm

520 mm / 345 mm from centre of top eye to base off shock.

spongie · **Posted:** Sat Nov 23, 2013 3:42 pm

Probably right jon was off the top of my head and I've not yet bought the things just filed for later

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jon goalen · **Posted:** Sat Nov 23, 2013 4:46 pm

I' ll let you off then

jon goalen · **Posted:** Sat Nov 23, 2013 9:17 pm

mowcop wrote:

520 mm / 345 mm from centre of top eye to base off shock.

I presume this is for a rear 101 shock, as you answered your own question.

mowcop · **Posted:** Sat Nov 23, 2013 9:31 pm

Yes
Forgot i have one.

Bed Bug · **Posted:** Mon Nov 25, 2013 7:03 am

It will be excellent news Jon, if you have sorted this.

jon goalen · **Posted:** Fri Nov 29, 2013 8:01 pm

Here is a little update to this shocking problem.
First I'll talk about rear shocks.
For those out there that knew that Defender 110 rear shocks with a 2" lift fit on the rear of a 101.
Well, yes they do but actually they are too long [that is if mowcop has given me the right dimensions which I'm sure he has].
So from his dimensions a 101 rear shock is 520 mm / 345 mm from centre of top eye to base off shock.
A 110 standard rear shock is 560mm/355mm
And standard rear Discovery shock is 550mm/345mm
This will explain why Terrafirma Big Bore shocks list the same shock for the rear of 110's and Disco's
So a standard rear Disco shock is a better size length wise [not that I would be put of using a 110 shock], the eyes seem to be the same size too as 101 shocks. To use these shocks I recommend using the 101 bushes top and bottom.
The thing about using these shocks is that the axle would be allowed to travel an extra 30mm away from the chassis, which I don't think would be a problem.
So if you had an extra 2" of shock travel [using a 110 rear shock with a 2" lift] you may say 'excellant more articulation', yes but what about the compression maybe the bump stop would now be redundant as it bottoms out the shock.
Standard length Disco/110 rear shocks would dimensionally work for us.

Front shocks
These are more difficult simply because they have an eye top and bottom.
So what would we have if we were to put an eye on the bottom of a standard rear 110/disco shock?
Dimensionally we would have a shock the right length give or take a few millimeters.
A 101 front shock is 595mm/385mm eye to eye.
A 110 standard rear shock is 560mm/355mm from eye centre to base so if we added an new eye to the bottom of the shock we could make it about 590mm/385mm.
The trouble is this can't be welded on, so I am working on this.

Damping rates.
This is slightly more problematic as I don't have a machine to test shock rates but I will be doing some experiments with weights/time on various shocks that I have to hand.
I am also lead to believe that shocks used for coils have a higher damping rate than ones used for leafs can anyone comfirm this.
Just as a matter of interest.
I was under an Iveco the other day which is set up for a gross weight of 6.5 tons and I have to say the shock bodys on that were quite narrow.

There are some nice shocks out there with lots of claims about performance and reliablity and there is also the ability to buy uprated damping too if it is needed.
We'll have to wait and see when I compare damping rates with various shocks as to which way to turn next.

So I feel from all of this waffling that it isn't going to be too hard to sort out a solution, however that all depends on how much of a rivet counter you are!!!

Bed Bug · **Posted:** Fri Nov 29, 2013 8:08 pm

Lots of good Work Jon... keep going !

mowcop · **Posted:** Fri Nov 29, 2013 8:34 pm

Should the 110 and discovery rears be ok, then this will make it easy to get a more "original looking" shock for the rivit counters rather than some over sized giant with pink or blue plastic bellows.
Thanks for the work.

spongie · **Posted:** Fri Nov 29, 2013 8:38 pm

Jon a man of your talents can.surely fabricate a new spring plate with a hole for a pin instead of a pin for a hole... If that makes sense lol!

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Pinkrover · **Posted:** Fri Nov 29, 2013 9:02 pm

fantastic work Jon, I am watching this with interest as I need a pair of rear shocks for Shrek I am sure everyone else appreciates your efforts too,

chris td5 · **Posted:** Sat Nov 30, 2013 9:12 pm

I've no idea of the dimensions but Disco2 front shocks have an eye each end

jon goalen · **Posted:** Sun Dec 01, 2013 8:49 am

Well volunteered, you had better get the spanners and the tape measure out.

Front shock dimensions

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