I need to replace both radius arms on my MK1 VP. I have found a pair of MK2 arms.
Mine are coded WFM 2007 and WFM 2008. The MK2 are coded WFM2068 and WFM2069.
I do not know the difference. Is it possible to fit the MK2 arms to a MK1 subframe?
Thank you for any knowledgeable reply.

They are different yes. The mk1 arms are round an have closed ends by the wheel and look a bit like mini radius arms, the mk2 arms are hollow, more square looking and open in that end.

They will fit the subframe and hydragas sphere but will sit lower at the same pressure and alloy rod length as the mk2 subframe sits closer to the ground due to rubber buffers between the body of the car and the subframe which the mk1 does not have. Hence the rear subframe mounts are also different and the suspension ball socket is at a different angle. Which is why the car will sit lower.

So in short. To fit mk2 arms, a change of subframe mounts etc is also needed

WOW! What an excellent explanation. So I can't use them.

Then: I am in search of a good used pair of MK1 (or NOS even better) radius arms. Please someone help me.

I would like to use more your knowhow...

What could be wrong using MK1 van arms? (code NAM4624 and NAM4625)

Sinirrop wrote: ↑Wed Mar 29, 2017 8:01 pm I would like to use more your knowhow...

What could be wrong using MK1 van arms? (code NAM4624 and NAM4625)

unfortunately I have never inspected the rear suspension on a van, so I don't know for sure what the difference between then van arms and the other arms are.

you could use the mk2 arms but the drop stop would sit at a different height and you would have to shim the suspension rod longer.

but what is wrong with your existing mk1 arms? if its just the radius arm bearings these can be bought and changed.

The bearing seats are badly worn. And one arm has also the wheel bearing stud which is bent.
I know that bearings and pin are available as a kit: I already done the same job on my wife's mk3....
I could try to have them machined to a larger diameter and insert a bush to create a new bearing seat, but I am afraid that in this way it will be not yet strong enough.

Sinirrop wrote: ↑Wed Mar 29, 2017 8:33 pm The bearing seats are badly worn. And one arm has also the wheel bearing stud which is bent.
I know that bearings and pin are available as a kit: I already done the same job on my wife's mk3....
I could try to have them machined to a larger diameter and insert a bush to create a new bearing seat, but I am afraid that in this way it will be not yet strong enough.

when you say bearing seats and bearing stud is that the stub-axle you talk about?
if so, then yes I see why you need a new radius arm.

I have previously repaired a radius arm which was worn through the bearing and into the cast iron by filling the worn away bit with chemical metal and then filing it to the correct diameter using a tool called a reamer. this holds up just fine. but if your arm is worn to much through I wouldn't have any doubts about making a tight fitting bush and fitting this into the arm for the radius arm bearing to sit in.

its pretty hard to tell for sure what this actually fits with virtually no description, no proper part number and only one picture, but it looks like it might be the one. what do you think?

http://www.ebay.co.uk/itm/NEAR-SIDE-ROV ... 2438782692

DotMatrix wrote: ↑Wed Mar 29, 2017 9:07 pm
when you say bearing seats and bearing stud is that the stub-axle you talk about?
if so, then yes I see why you need a new radius arm.

I have previously repaired a radius arm which was worn through the bearing and into the cast iron by filling the worn away bit with chemical metal and then filing it to the correct diameter using a tool called a reamer. this holds up just fine. but if your arm is worn to much through I wouldn't have any doubts about making a tight fitting bush and fitting this into the arm for the radius arm bearing to sit in.

Thank you for sharing your experience: it's such a pleasure to talk with someone who knows exactly what we are talking about.
Actually one of my arms has two problems:
1) the needle bearing seats is worn through the cast iron: it is where I tought to install a tight fit bush.
2) the wheel hub bearing axle is bent: here I do not know how to repair it.
The other arm has only problem no.1.
I tought it was easier and safer to find a good pair of arms and have new bearings installed. But They are difficult to find, as I am learning...

DotMatrix wrote: ↑Wed Mar 29, 2017 9:29 pm its pretty hard to tell for sure what this actually fits with virtually no description, no proper part number and only one picture, but it looks like it might be the one. what do you think?

http://www.ebay.co.uk/itm/NEAR-SIDE-ROV ... 2438782692

I understand that they are for a mk3... Are radius arms so specific for every series?