What holds the rear beam together?

[Richie-Van-GTi 72 2 Cars]

Bit of a stupid question probably, but what actually holds the 2 ends onto the tube woth then rear suspension?

From what i can see, the arb is only pushed into the arb plates, the torsion bars are only fully captive on one end by the m8 nut, the yother end they could slide out away from the offset washer. Is it just the shockers that stop them from moving outward?

[petert 588]

Each torsion bar has a bolt both ends. So even it you ran no ARB it can’t fall apart.

[SRDT 180]

I think it's just interference fit but once bolted on the car the tube can't go too far anyway. On this drawing you can see that there is only a small gap before the tube hits a shoulder:

Bdw this must be a early drawing because the bearing on the right looks like a plain bearing unlike the one on the left.

Edited August 9 by SRDT

[petert 588]

There is nothing interference fit about the torsion bars at all. And the shafts can easily withdraw from the bearings unless retained by the torsion bars. The only thing that holds them together is the M6 screw on each end.

 

I don’t run any torsion bars. All that holds mine together is the ARB.

Edited August 10 by petert

[PhilNW 44]

For what looks like a small bolt an M6 bolt can resist about a tonne in weight

 

The kerb side weight  is listed as 975 Kg

Edited August 10 by PhilNW

[SRDT 180]

1 hour ago, petert said:

There is nothing interference fit about the torsion bars at all.

I was talking about the cast iron ends and the steel tube. The arms are indeed only retained by the torsion bars.