Of the two kits I got, neither have rubber seals? Are you talking about the rubber boots that slip over the ball mating end and somewhat cover the slip that the ball moves in? I purchased those separtely.
Each kit is a bit different from the other. They were literally the last two plastic bagged in the box. There's a bit of difference between them. One has red springs with seat shafts (two) that are 3/3 dia. The other has black springs with 3 seats whose diameter is close to 1/2 inch. The is one long shaft and two short shafts.
If the long shaft goes into the hole, does one of the other seats back up to it with the spring over the top? Or?