Are these available please? full kit not just pin.

If they are the same as the RT, a post a while back did not find a source. Only advice given was either to pack with grease or if too far gone, to get the old ones metal sprayed and that was not going to be cheap. If anyone does know of source of these will be interested to know where it is.

My bus number (if any): RTL 960 RMC 1458 RM 1585 and several RTs

Thanks Brian,this was what I had feared.
Is it possible to obtain a full engineering specification for them ? I have had discussions with my local machine shop, who would need to know exactly what material the pins are made from and what heat treatment is required.

I don't have a spec for them Roy, but I'll make enquiries. All I know for certain is that the pins were made from heat treated steel, but I have a horrible feeling like a lot of RT stuff that went through Chiswick there were different "standards" (ie sizes of pin and bushes) so finding a spec might not be the answer we need. The general view is that they should not wear if properly greased, but that was with regular changes of axles and hubs etc, we have found that 40 years in use disproves that theory. Will come back when I find out more.

My bus number (if any): RTL 960 RMC 1458 RM 1585 and several RTs

Thanks Brian,

Yes I have come across this 'standards' with the RM kingpin and hopefully got to the bottom of what the difference is now. Chiswick of course did what they liked, determined to re-usewhatever possible, so the only real way of proceeding seems to be that one must identify what 'standard'is currently fitted, and if the RT/F axle beam or RM kingpost counterbore is serviceable, then that is the standard required.
Having recently completed an RM kingpin overhaul, the bushes currently available fitted correctly both an original pin and one to 3rd standard, but the 3rd standard pin did not fit the kingpost correctly - there was 1/4" too much protrusion from the bottom. It was the diameters of the tapered parts of the pin that altered.
On this occasion there was no problem with the id. of the stub axle bores which were still as originally machined.
I have heard that LT, in their efforts to recycle everything possible, reground the bearing surfaces of the pin, so one must be prepared to find all sorts of alterations. The governing factor will naturally be the condition and size of the axle/kingpost bore and the same for the stub axle.

I had a similar problem for a kingpin and stub axle problem for an old Bedford OB.

Could not source a spare or a series of graduated replacement bushes.

In the end we went to a specialist that makes suspension components for the motor racing industry.
They made a new pair of kingpins to aviation quality and reamed the stubs and fitted new bushes. It cost a bit but very little in comparison to the amount paid later for an original that surfaced.

Last I heard that OB had not since had any trouble and had been well used.

My well used brain though can't remember the name of the company we used but they also built Thrust SSC and are in the Bognor- Chichester area.

I KNOW RF kingpins are hard to get hold off ive never had to get any for our RF ,we do have a front axle complete with drums with kingppins still inside for sale along with many other bits otherwise try RF master ward jones.hope this is of help

My bus number (if any): RCL 2238 ,RF,RT

They are the same kingpins as standard RM. I used RM ones in RF136 many years ago.

My bus number (if any): RML2532

Thanks Roy - I had wondered whether AEC had used the same pin. I shall go down that route when it comes to it.