I used a variable speed drill with a piece of an old cable. 

Sent from my iPhone

> On Apr 18, 2017, at 11:26 AM, Dan N <dn92610@GMAIL.COM> wrote:
> 
> hi all,
> 
> is there a way to test a speedometer out of a van (as in bench test)?
> 
> I mean without removing the one in my van, connect the new one and then
> find out it's not good, take it off and put the old one back on?
> 
> thanks
> 
> dan