Spanner to fit large hexagon cover nut at base of inter vertical drive tube

But measured across the jaws is 1.5" so the AF size would probably be fine. I'm fairly sure I bought my spanner from Bacons Dozen but I don't see it listed on the website now. It would still be worth calling Kevin Bacon as he says he has a large stock of used imperial tools that are not listed on the site. For contact details see website below.

http://www.baconsdozen.co.uk/

Ian McD

....does the trick and is much easier on the nut. AN -16 is the correct size.

What's an AN wrench?

" AN Wrenches are made from aluminum and are ideal for assembling AN hose ends & protecting the finish on AN hose ends while servicing your vehicle. Each wrench is sized to work with the appropriate size Hose end to prevent over-torquing your plumbing. "

And you really don't want to over-torque your plumbing.

I didn't know about AN wrenches. That looks like the right tool for the job, and almost certainly cheaper than buying a traditional spanner in that size.

Ian McD