Engineering battle

[Wooders]

I've had that discussion with him but he said he would only pass that type of radius arm if it was a standard application. I'm booked in tomorrow for my next (hopefully final) inspection, so I'll see how I go. Cheers

If it was still standard you wouldn't be seeking engineering.
Simple - count the links and say - "Was 5 link. STILL 5 has links.
Sorry but if the bloke is that stubborn I'd be shopping for another.