Looks good to me. Geiger Springs for sure. And absolutely they are still being made. Just installed a set last weekend and ordered another set this week. I believe that cap is not welded on. Seems like I read somewhere that they have a cap that 'snaps' on (maybe pressed on). Those Geiser springs are a great addition to the 2.5's.
I would take the truck somewhere and wash it real good. Especially spend some time on the front shocks. Then inspect them to see if they are leaking oil anywhere. Take it on a road that has some humps in it and see if there is any 'floating' going on. This might indicate that the shocks are needing rebuilt, which in itself isn't a big deal. Just something to look for.
Great suggestion above to get the stock UCA's and spring if they are available. If not, no big deal.....
Oh, and to explain the Geiser Springs (your original request - lol). They are a bit longer than the stock springs which will raise the front end about an inch and a half. They are more progressive than the stockers. This means that as they compress, they will become stiffer. This allows you to offroad with more confidence of not bottoming out at full compression. They are nice and smooth at normal ride and stiff when working the truck out making it more stable.
