unimog torsion free sub frame.

[chapel gate]

Anyone on here have knowledge/experience of a four point torsion free sub frame?

 

[moggy1968]

It’s a three point isn’t it!

 

[chapel gate]

4 point is also a option. Two centre pivots front and rear of the chassis. Plus two mid mounted fixed points on each chassis rail.

apparently..

 

[Jon Wildsmith]

Ian Rubie had a unimog that had that arrangement and I built a tray back on it for him.

 

[chapel gate]

Ian Rubie had a unimog that had that arrangement and I built a tray back on it for him.

Did you reuse the existing mounts jon? Was it a flatbed you put back on it?

 

[stumog]

What are you wanting to know?

The Mic chassis is designed to twist so nothing would be added to stop this.

Watch out for adding extra cross members and don't box the inside of the chassis.

It's odd to see how far the box moves when flexing

 

[Jon Wildsmith]

The mog came with a box which Ian cut up to leave just the mounting system and then I made a flat bed frame with a roll over hoop and stuck that on top. This picture might help:

 

[denboy]

The mog came with a box which Ian cut up to leave just the mounting system and then I made a flat bed frame with a roll over hoop and stuck that on top. This picture might help:
View attachment 139374

Jon - you must have really great understanding neighbors with that UNIMOG parked up the drive while you sorted it out ... even if you moved it afterwards to a workshop.....

I can only imagine the heavy sighs and muttering from the curtain twitchers when that rolled up - LOL.

 

[chapel gate]

im wanting to fit a hiab and tipper body. at the moment there is a cherry picker fixed to a substantial sub frame which is then fixed to the vehicle chassis via the four points I mentioned. I'm wondering if I can cut everything off the sub frame leaving just the sub frame chassis rails and its fixing points to the main chassis, I could then fit the hiab and tipper body as you normally would to a 7.5 tonner. or as I have a offer on the cherry picker, remove the thing as one unit and copy its sub frame design.

ive done nothing but search the internet, and lots of complicated and very well fabricated solutions appear. non seem to really show the mounting points to the vehicle chassis. id love to be able to hand it over to a unimog specialist and throw thousands of pounds at it, but, as ever that's not a option.

going round in circles a bit at the moment..

 

[stumog]

The hiabs I have seen on mogs have always mounted behind the cab the same as any other lorry. Is the rear of the chassis that flexes so along as it moves further back you will be fine.

 

[chapel gate]

The hiabs I have seen on mogs have always mounted behind the cab the same as any other lorry. Is the rear of the chassis that flexes so along as it moves further back you will be fine.

stu, If that's the case its music to my ears, its been doing my head in tbh. ive been sent pictures of fancy mounting systems that to my eyes still span both chassis rails, then they have the "third mounting point" which pivots, but its still spanning both chassis rails!! ok they don't have the long lengths of plate running along the chassis that's normally added when fitting to a lorry, maybe the third mounting point offers this extra spread of load so the plates are not needed?