Ah, the memories! Yeah, as a kid it always seemed like a hassle to adjust the things forward or back if the ground was hard. On our sandy soil though, on freshly plowed ground the adjustments seemed to work pretty good. And yes the darned things make one heck of a racket down a paved road! Yup, the &quot;9&quot; is the width of the disc. The operators manual lists the widths from 5' to 10' in a double disc and 9', 10' and 12' in a single disc arrangement. The manual shows the hydraulic attachment also. All the hydraulic cylinder did was move the manual adjustment lever instead of pulling a rope to do the same thing. Pop had to have bought the disc after 1954. That's when he bought the 88. His big tractor up to that point was a Farmall M and I can tell you the M would have had a very difficult time pulling that disc on freshly plowed ground cause the 88 was a third gear propositon on soft ground or hills. And the 88 was a lot more tractor than an M. One nice thing about those discs is that they were fairly light by today's standards and on our rocky ground they bounced over the stones with out breaking a lot of dics. The disadvantage was that if someone did a hogged-up job of plowing down sod, you had to go over the field about 50 times to cut the sod up enough to get a decent seedbed for the corn planters of the day. Either that or you had an awful lot of skips in your corn field where the planter couldn't cope with the clumps of sod.