onefastmustang,
I just cleaned up the shock springs and shocks for our "Mustang Madness"
show here and they did say pro shocks (they are chromed) so I'm
guessing that is what they are. The bases are threaded and have a coller
that you can adjust the spring up or down. As far as rating - not sure. They
look similar to overloads that I had put on a pickup gave me an extra 500
lbs. The ride is firm but smooth and it doesn't bottom out ever. I also
have the heavy duty torsion bars too, so very little roll. Works for me.
I'm in Hawaii where they closed the only track so my driving is limited to
just cruising around Oahu, so at least I'm not breaking stuff!