Sitec
Adventurer
While pulling the living body I have apart for mods, widening etc I've been giving this 3 or 4 point mounting thought. The central 1 or 2 pivots that have to sit in the middle of the chassis between the two rails have to have decent allowable twist movement so the bush system (pictured a couple of posts up) is perfect IMO, as its greasable, allows free movement of the chassis to twist etc, and is very similar to the picture I had in my mind. What I am pondering though is the two outer chassis pivots that stop the body from falling to the left or right. These are usually roughly in the center of the body (one either side of the chassis) with the chassis internal pivots at the front and rear (on a 4 point system). On mine, I'm having the 2 fixed points near to the cab about a meter back from the front of the living body (purely so the walkthru stays roughly in line both sides. My thoughts are that even with the truck fully crossed up and the chassis twisted (100mm to 150mm chassis twist over 6 meters), there will be very little movement on the outer two mounts. With this in mind, I now plan to utilize two 50mm (2") holes (pictured) that are approx 1 meter behind the cab and roughly central in the chassis 'C' section. I'd have a pair of drop plates off the body (200mm x 16mm) plate?) which would have a machined boss the same size as the holes in the chassis. I'd then have a brass bush/boss that slid into the two holes and a large central bolt that goes through the center of the brass boss, with two large washers. This would be mirrored on the other rail, and would locate, clamp and hold the brass in place, form a rigid solid fix that still allow the small amount of twist flex on this front mount... Thoughts? It saves me drilling holes, utilizes an existing hole that'll act as a pivot...