I bought a set of used Competition Engineering 3-way adjustable shocks *grey* part#C2700 and they have no backforce. They have some resistacne when I push on them but they dont pusk back. Is this normal? How do adjust them? I see letters and a little bracket I'm supposed to turn they say XF, F, and R what do those mean? Thanks.

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In other words, they are collapsed and I cant figure out how to open them up.
THANKS

 

You guy's answer the post "What does unibody mean" and not this one?

 

You can't extend the shock aborber? You should be able to pull it back out to full length.

A shock is NOT a spring! It is a very fancy way of introducing friction to the suspension to keep the springs from bouncing and bouncing after driving over a bump. The valving may not respond to your pushing and pulling, but will respond to more rapid contractions and extensions in order to control the ride.

XF is Extra Firm. F is Firm. R is Regular. "R" will give you the best ride. "XF" will ride hard but is best for cornering. "F" is somewhere in between.