Overdrive speedometer cable extension

I just googled "speedometer cable extension"

Found this!

SPEEDOMETER CABLE EXTENSION 20" GMC CHEVY DODGE FORD PICK UP TRUCK 20 Inch | eBay

I'm sure there are online shops and some in the UK still that can make you an extender /adapter they would just need to know what each end is and how long you need it.

Keep 90s large radius