Trail Master’s premium shock the SSV (Speed Smart Valving™), provides “On-the-fly” ride adjustability without buttons or dials. Shocks are application specific and tested to produce the best ride and handling characteristics for each application. The SSV shocks include a large 2-3/8” diameter cylinder, black urethane bushings, and dust boots. SSV shocks have a low-pressure nitrogen gas charge, to reduce foaming, and out performs foam cell shocks.
Price: $50.00 Pros: Improved handling in all conditions Cons: None in my opinion Recommended? Yes
Comments: The SSV's were installed to improve handling and they do just that. They are a little tight, but my Jeep handles better than it did with the stock shocks and it is very controlled on the highway. One of my best upgrades thus far!
UPDATE: June 14, 2011
I still have the SSV's on my Wrangler...no blown seals and just as firm as they were from day one. I've had them for over 4 years now.