79 sedan/GTV upper arm ball joint dust boot-generic

[sudsy]

So I know that Highwood Alfa have dust boots for all/most  suspension ball joints.

Problem is that, in order to make postage cost worthwhile, my shopping list grows and grows..

As we all know to replace the whole ball joint from original upper arm is a PITA..The actual BJ is still quite ok.. Just the boot has deteriorated..

Can anyone tell me the dimensions for a 79 Alfetta upper ball joint dust boot..Looking mainly for the base dimension...but the shaft dimension would be good too. I don't have vernier calipers AND its pretty awkward to measure too..