WIP Truck, Rear Suspension

[Lakop]

Greetings,

Here's a look at the rear suspension i'm using for a truck I've been working on for six months. I only have time for a couple of hours at weekends. Just wanted to share this with you. Could be a while before it's completed.

H

Edited June 15, 2015 by Horace T

[Lipko]

Why don't you just use T-beams?

[Lakop]

Why don't you just use T-beams?

Explain?

Actually I know what you mean. I simply don't have enough. I wanted to mimick air suspension.

H

Edited June 15, 2015 by Horace T

[sm1995]

Why don't you just use T-beams?

I think it's because of how the shock absorbers are mounted.

Anyway... it looks good, but, you could replace those 6x2 steering arms with the much less expensive 5x1 ones and save some $$$. You're gonna have to move the upper pivot further down but still..

[Lakop]

It pivots through the axle slot and it's all working fine, the springs are the softer grey springs. I used the steering arms because the 5x1's are already used and I only have a couple of them. The idea is to use what I have to see what I can achieve. I'm very happy with what i've got so far as there are two rear axles.

H

[Zerobricks]

This is gonna bend shock abosrbers in real life because nothing keeps the axle straight...

[Lakop]

This is gonna bend shock abosrbers in real life because nothing keeps the axle straight...

Nope. Not had that problem. Try it and get back to me.

H

[sm1995]

This is gonna bend shock abosrbers in real life because nothing keeps the axle straight...

You're right. He's going to need another pair of parallel steering arms/liftarms.

Nope. Not had that problem. Try it and get back to me.

H

it won't be a problem as long as you use soft spring dampers but for a full sized truck, those are not going to work. The hard spring ones will almost certainly buckle under pressure.

[Lakop]

I've used the soft grey springs as I thought the yellow was too rigid. The rear suspension is very similar to the mercedes actros truck that's coming, maybe the image does not show it correctly. It's attached to the chassis by the cross axle hole of the steering arms and the cross block that holds the shock absorber. It's working fine so far.

H

[AndyCW]

Have you thought about using this piece on either side of the center section?

One on the top and one on the bottom could be used to reinforce the axles stubs and replace the 2L arms and connectors.

v/r

Andy

[Lakop]

I see what you mean Andy. As I continue to build I might change it if I need the other parts for something else. There are so many ways to acheive the same thing. Thanks for the idea and thanks to the others for their opinions so far.

H

Edited June 18, 2015 by Horace T

[sm1995]

I've used the soft grey springs as I thought the yellow was too rigid. The rear suspension is very similar to the mercedes actros truck that's coming, maybe the image does not show it correctly. It's attached to the chassis by the cross axle hole of the steering arms and the cross block that holds the shock absorber. It's working fine so far.

H

Well actually, if you look at the Arocs' suspension you'd see that there are two sets of parallel steering arms to keep the axle horizontal. It's a pretty crucial detail that you shouldn't ignore.

[Lakop]

I have an idea of what's used in the new mercedes truck. I can't fully reconstruct their front suspension but used a similar idea for my rear suspension which works fine and is very solid.

H