FL350 Rear Shock Question

[FL350Kid]

Here's a close up of the top mount of my right rear shock.


It has a valve to release air pressure that I haven't seen on some other FL350's.  Is this a stock shock?  I know the spring is the wrong color to be a stock shock, but as you can imagine, I'm not the first owner, so I don't know whether it has been painted or replaced. 

Can anyone tell me how to check to see if it is stock?

[LiveWire]

It is a modified stock shock. You should spin the adjusters to the lowest spring pre-load setting. If everything else is in working order, replacing them with Works would be high on my list.

[DMoneyAllstar]

The stock rear shocks come apart fairly easy, so its not surprise someone may have opted for a different paint color on the springs.  Mine are Ford blue, and a lot of people automatically think they're Works.