On Dec 2, 10:03*am, JohnDeRosa wrote:
This may help, eBay has 50mm balls and couplings shipped in the US.
Just search for "50mm coupling" or "55mm ball".

I was wrong...sigh...they seem to all be from the UK. Location was
blank until I looked at the cost and saw GBP.

However, the cost of a 50mm coupling is not too bad.

GBP 19.99 Approximately US $31.35
Shipping: GBP 12.00(approx. US $18.82)

My $0.02 is to go with 2".