Unfortunately, I'm about a day away from going out of business so hiring anyone isn't an option. I didn't count the threads on the two threaded rods connecting the chains but they seem to be evenly locked in place at both top and bottom of both rods. Maybe an inch of thread showing at both ends. The chains are only 6.5" apart but it would seem I could adjust the right rod to shorten it thereby lifting that fork. I'll look at the rollers to see if i'm missing any but it seems to me that the rollers which are there should have less tolerance between them and the tracks they roll in. I don't know. Its an old forklift. As I mentioned earlier, I can't find a placard to tell me what the model number or age of it is. I bought it from a repair shop last year. The other issue (I think its an issue, never seen one do this before) when lowering the forks with weight on them and stopping, the main cylinder bounces up and down before settling. It's almost like the chains are actually doing all the work. Is this normal?