The shocks specifically for T-4 or T-2 can be purchased thru McCoy Motorsports or Buggy World. Although Buggy World is a little more expensive, that's where mine were purchased. They're about 150 miles from my primary residence so I drove down and picked them up, you know a bird in the hand and all that. Also, I thought that Buggy World would have more experience in the desert, where I ride, as opposed to McCoy who is located somewhere in the southeast. Little different terrain.
As for the specifications, I think these guys are trying to keep it a secret because I contacted other King dealers with no luck. If you like I can read the info off the shock and get back to you when I return to Arizona sometime next week.
Bye the way I've lurked around the site for a while and have really gotten some good info from you guys. You know, I had to go out and purchase replacement shocks to get a decent ride and you guys are making them. But I've got to admit mine rides like a Cadallic now.