Thanks @payydg those are great videos - I am learning a lot from messing this job up! Off to get some powdered graphite!

Thanks @oldjunk90 I wish I had seen your post before I tried to remove the barrel with a hacksaw and snapped off the end of the cylinder! Some people have to learn the hard way I guess :)

Thanks @miktdish - there really is no hole. I have been scraping away to see if it was covered by dirt and corosion and even resorted to drilling a couple of exploratory holes but all to no avail. Think I am just going to have to replace all the door locks.

Just took the rear door handle mechanism off and want to remove the lock cylinder but there is no hole in the side to poke anything in. New rear door handle has a hole on the barrel. All the threads I can find on here talk about sticking something into the hole to remove the barrel with the key...

Heavy duty drive plates and half shafts and now she drives like a charm - smooth and quiet - no more banging, clunking and noisy overrun!

It's the half shaft that has moved. I was being ignorant and calling it a stub axle. Rookie mistake :(

That makes sense now. I was mistaking the name for the half shafts and calling it a stub axle by mistake. I found a you tube video of a guy with the same issue once I knew to search for half shaft.

I will take a look at that next.

Thanks TorsionBhudda - it looks like the stub axle has slid inwards on the end of the half shaft so that the half shaft is sticking out more on the bad side than the good. Is it dangerous to drive like that for a short distance to a mechanic? I don't have any tools or workspace for that kind of...

Thanks again Joe. I just realized I have been mixing my parts. It's the half shaft that is protuding. The stub axle is further along the half shaft on the bad side. On the good side the stub axle is almost at the end of the half shaft with hardly any half shaft exposed.

Checked the other side. Hub caps are rubber and quite perished so probably time to replace anyway. On the good side the stub axle barely protrudes past the circlip - maybe quarter of an inch or so. On the bad side it's jutting out over an inch which is why the hubcap came off in the first...

Admiring the scenic West Coast

Thanks Joe - my driveway is bearing witness to all the different places oil can come out!

Yes it's the rear and it looks identical to the front on a 2008 Puma 90 which was confusing since the Haynes manual shows them as different front and back.

It's a 2008 Puma 90 Hardtop. Disks all round.