Speedometer square drive size at the wheel? (Vanagon 2wd)

[keithwwalker]

Can anyone confirm with a micrometer what size the square drive end of the speedometer cable is at the wheel hub (not at the speedometer)?

I checked it at 5.2mm (0.2047 inch).
This is not quite metric sizing as square metric broaches are only sized in whole mm increments, ie 5mm.

I am embarking on a project to replace the stock vanagon wheel steel grease caps with aluminum type and I have to purchase a broach to get the speedo drive working.

Anyone care to run out and measure?

[xoo00oox]

Just checked one, I got 5.25mm (.207")

[keithwwalker]

I'm going to have to pull out my Machinery Handbook. What an odd size...
Alternatively, We should measure the grease cap hole size, that is what I am trying to replicate...will post it later tonight.