2" CDS or 7075 Bar

[indy4x]

I'm collecting bits as funds allow for my project Jeep XJ

I'm converting the rear suspension from leaf to coil and it will be a 4 link setup

The front is already on coils as standard but the arms are quite short so it's getting a 3 link long arm conversion

I have some Johnny Joints on their way and I'm looking for suitable material to make the suspension arms

Original plan was to use 2" dia, 1/4" wall CDS however this is proving hard to get hold of. My local steel supplier can get it but I've been waiting 2 weeks for a price.

Someone suggested using 2" 7075 aluminium bar instead, I need about 6m in total, it comes in 4m lengths and will cost me about £150 for 2 lengths

The CDS will be more however cost is not the issue within reason

The Jeep will be used off road, it will probably get dragged over some rocks at some point (sensitively of course) and I am worried about the rocks gouging the aluminium

So question is, should I be concerned and hold out for the CDS or go with the Aluminium option

 

[Tinbasherdan]

I’d be using steel, myself.

 

[Brad93]

Steel.

try ProFormance metals For the tube. They carry a lot of more exotic tube.

why 2” also, is it not available in metric sizes more easily?

 

[frank horton]

dont forget the extra skid plates on the exposed parts of the lower tubes....

 

[indy4x]

Steel.

try ProFormance metals For the tube. They carry a lot of more exotic tube.

why 2” also, is it not available in metric sizes more easily?

Doesn't have to be 2" specifically, metric alternative is fine

 

[Brad93]

Doesn't have to be 2" specifically, metric alternative is fine

I looked on their website they do inch and metric. Worth a ring

 

[pedrobedro]

Does it need to be CDS ? ERW is plenty strong enough for automotive use. Also there is CDS hydraulic or CDS mechanical tube and you would want mechanical.

 

[indy4x]

It doesn't have to be CDS, the thickness means it's way stronger than stock anyway