Speedometer Drive Gear Ratio

Depends.

There are two of the ZF-mounted angle drives and two tach-speedo units:

VDO and Borletti

Both must be installed as a matched set.

They are not the same ratio.

Believe the back of the tach has the needed information to enable you to get the proper angle drive.

Hopefully someone else will chime in with more details - I can't find the info I have.

Larry

Peter Hi
if you got VDO equipment you want to try Porsche 914 gear..as the same set up..and they have top documention..

Matthias

Thanks! A silly question : Veglia Speedometer is based on VDO ?
How can I know what fit in my zf ?
I have no original parts. Only the speedometer from Veglia and the zf .
Thanks

Can you take a photograph of the back of your speedometer and post it to this forum?

Larry

quote:

Originally posted by GT4Peter:
Thanks! A silly question : Veglia Speedometer is based on VDO ?
How can I know what fit in my zf ?
I have no original parts. Only the speedometer from Veglia and the zf .
Thanks

This is a picture of the gear reduction unit. You receive about 2' of new cable with it, one end plugs into your Z.F., then you just plug your old cable into the back of the reduction body.