From what I can tell it seems to give the cylinder more of a mechancical advantage over the factory mounting.  

I see a few people move the spring pockets in the lower arms closer to the ball-joint. From what I can tell it is too get the spring to stand up straight when the car is locked out for a better spring rebound. Does anyone have any thoughts on this?  

I'm not too sure what kind of gear this is because it is not marked but it came from hi-lo a few years ago...

 They are Rockford gears, I have 2 of them. The lack of roller berings dont seem to affect them much they inside gear surface wears out before the friction bearing  

Update: I took the gear in 1 of my front pumps apart and the outer (big) O ring was split in 2 . I replaced it and Im gonna rebuild the other front pump tommorrow since I ordered an extra rebuild kit.
     

I mean changing the O rings in the gear, and those teflon rings. The gear seems to be loseing pressure the fluid in the tank is foaming pretty bad. Ive also lost alot of pressure.  

When do you rebuild a Marzocchi gear and when do you just get a new one?  

Hmm I woder if that thing will adapt to a regular block?