We have placed a rear and left stabilizer bar from the C718 model that shares chassis measurements and requires little adaptation, we have placed two leaf springs and we have removed two height blocks to not gain more height, we have put King 2.5 shock absorbers and we have moved the rear ones through the gap between the drum of the removed twin, they are tight but they do not touch and instead we have placed pneumatic support suspension, it is not completely finished since a square must be placed between the lower support and the axle.
Lateral stability has improved quite a bit, we are happy, but it could still be improved a little more by placing some 4cm spacers per wheel. The drawback is that it would be necessary to reinforce the ball joints, heavy-duty steering ends, and reinforce the steering box. With this modification, the suspension improvements would be complete.