Hi Alan,
The bushes shown in my previous post were removed from my 1991 RML40 during its recent refurbishment. I understand that RML's enquiries revealed them to have been made by a company owned by ZF (as in gearboxes) and, according to ZF's technical department at Crick, were prototypes that never made it into road car production. That was 15+ years ago so, needless to say, they're no longer available.
Accordingly, RML fitted PFR3-208a bushes from Powerflex.
Attached a couple of shots. I'm not certain if RML had to make up adaptors. If they are required then I can probably get the drawing - it was only earlier this year. Let me know.
Regards,
Jim