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Rear suspension springs for SWB

fig

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#1
Hi all

As I dig deeper into my latest project 1982 300GD SWB, I've discovered that one of the rear suspension springs is broken.

Does anyone on the forum have an unused new or good used set for me?
 

460LeoG

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#2
Hi all

As I dig deeper into my latest project 1982 300GD SWB, I've discovered that one of the rear suspension springs is broken.

Does anyone on the forum have an unused new or good used set for me?
As soon as I can get into my garage (maybe weekend) might be able to assist.
 

Stan

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#3
I also have s bunch of springs that was gifted when I bought my G. If you don't come right let me know.

Sent from my SM-G975F using Tapatalk
 

Antony

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#5
Christian,

Hienie had a set of green springs for a shorty. Not sure if he sold them with his shorty earlier this year. SWB springs are different to LwB. In a pinch I have a set of good LWB rear springs to tide you over
 

fig

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#7
Fig

Still available should you want them -
Thanks Heinie

I'm not very clued up about the colour coding, but from the graphs in this thread: https://www.mb4x4.co.za/index.php?t...ide-skirt-rubbers.2366/#lg=post-21803&slide=1 it looks like the green ones aren't made for carrying loads. The ones on the car are yellow I think.

Does anyone know if the green springs would be appropriate for this car, which will be used as a utility vehicle and occasionally for expeditions?
 

Andrew

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#9
Yellow was a very common spring. I bought two sets and used them on both LWB and SWB and they are very comfy. They were known as half ton springs. They do sag quite a bit ( see graph in the link) and i think are more suited to SWB.

I have just been to fetch 400kg of cement with the Chicken Coupé and it handles fine albeit lower at the back.

I am sure you saw that the graph shows loading in Nm (leverage torque or moment unit) which is wrong. It should read N (unit of force ie mass in this case) which you divide by approx 10 to get Kg. The back end of your SWB G with a full tank of fuel and spare i would estimate at 3000N ie 300 kg. The axles are unsprung and can be ignored.
 

460LeoG

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#10
Also remember it makes a huge difference back seat or not. Those are almost 3000N on their own... I have the New Sachs amber (not to be confused with yellow which Sachs have discontinued) and finally happy with SWB springs.
 

Andrew

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#11
@Leo. You are right. I have also heard 300 Kg but then wondered how i could pick it up alone! Still heavy enough.

Are the amber springs on that spring chart?
 

fig

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#13
Thanks all

So it looks like I should be going for yellow or amber springs. My 300GD shorty has no rear seat and I have no intention of fitting one. It will often be used to carry loads.
 

Pete460332

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#14
Rear axle is 124kg + 70 kg for the steel wheel and tires . Rear seat probably around 50 kg - its so bulky that it feels more