Hi there,
Have just bought an old Fiat ducato 2.5 td from 1992, a frankia A540 Motorhome.
I have a problem with the front right Axle which keeps coming out of the differential. Not sure why but it's now coming out all the time and I have to go under the car and force it back in. Has anyone had this problem?

Also would anyone have a manual for this motorhome as it came with no papers. It's lhd by the way imported from Germany with license plate J329JKP, has anyone by any chance owned it here?

Many thanks

Can't help with the manual (though Peter Russek publications used to sell a manual for the base van) however the driveshaft splines should have a circular machined groove a couple of cms from the end that fits in the diff.

There should be a ring in this groove which locates in a similar groove in the diff housing and this retains the driveshaft in place.

Possibly the ring is missing or weakened and I've heard of folks using a keyring of the correct size as a replacement if they can't get the correct part.

As above, I’ve done the same thing myself and had the shaft pop out.
It can be quite hard to get the driveshaft fully home so the ring engages the groove properly. As the driveshaft goes in it squeezes the ring down, the ring then expands when it gets to the groove which locks the driveshaft in place. It needs a lot of force to get the ring to squeeze down.
I used two pairs of large mole grips on the driveshaft and used my feet against them to push hard until I heard the click as the ring engaged.
Good luck.

The driveshaft cannot come out of the planet wheel socket, unless your lower suspension arm is also coming out from the chassis. The circlip is not there to stop it coming out, it's there merely to locate it. To slide out far enough to drop out altogether there has to be a very serious suspension fault, you definitely should not be driving the vehicle until it's fixed.

Check the lower ball joint at the base of the McPherson strut, and the track control rod rubber buffers and the lower arm rubber bushes, and the bolts that pass through tying everything together.