Hi, friends.
I finaly finished working drive axles:
First I filled brake chamber mounting holes (consider teir location wrong) and made new ones :

Here is how they should be from Cruiseliner broshure.

I here is how I made camel back suspension. 0,8 styrene strips were used for springs:

Here I cut original suspension for axle brackets and center point hub.

I found Mack Center point suspension on line:

Here is the jig to glue and shape springs:

The idea is: spring ends sit inside brackets free. Pins (marked with red circles) are hold springs in place:

Of course we need working shock absorbers here. So I used brass tubes:

Billets:

Shock absorber:

Here is the jig to solder a lug to bigger tube:

Tubes a little smaller in diametr, but slide each other perfectly:

I didn't like kit's cardan shafts:

So I modified one. Cooper wire, cooper sheet, brass tube and plastic rod were used:

Here are cross pieces and U-brackets:

Feel the difference:

The result:

The other hand:

All driving wheels are touching the ground :

Here is U-bolts on front axle :