Howdy all - have a thing here and I'm wondering if anyone else has ever run 
into it.
On my EV (electravan from the 80's), I have an electric reverse going via an 
sw202 contactor.  Did a motor swap fairly recently to a 7" Prestolite, which 
has a tach send + tachometer that were in use on the previous car that was 
using this motor.  Problem is, it has an issue with the reverse setup, and fair 
enough as it spins the motor backwards.  Probably should have expected as much! 
 It made an audible clicking sound and I'm hoping nothing is stripped out - 
I've unhooked it at the tach and may need to unhook it at the motor as well.  
Will test, not sure if the little 90 deg adapter that's inline is ok with being 
spun the other way.

Question - anyone know of any sort of little adapter, maybe from the forklift 
world, that will freewheel when spun backwards but allow the tach drive to go 
through in forward only?  Does such a thing exist?

We have a speedo specialist in the area, will give them a call as well.  I like 
the idea of having the analog tach but might skip this and do an optical one if 
I can't get something in place for it.  Which optical has the advantage that I 
could use it to trigger my redline controller cutoff, so not the worst thing.

Thanks as always
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