Well it's been a few months since work/life let me work on the 416. I ordered the front axle pivot bushings thanks to the link Oldcowhand sent me and got those installed. The spindle bushings are in good shape but the thrust washers are needing replaced so I'm buying those tomorrow. The wheel bearings were shot so I'm ordering those and the races this week as well.
We got the electric lift stripped down and ready for sandblasting so weather permitting the sandblaster should get a workout this week. I'm hoping to get it all blasted,primed, and painted before the kids spring break so we can get a lot of assembly done that week.
I could not read the serial number because a PO painted over the data plate but after peeling it off I can read it from the back side and order a new data plate with the decal kit. The serial number is 2604266 so I'm trying to find out how early in the production year it was built but that might be hard due to lack of records on these tractors.
I have two 416's, one hydro and one shuttle. I believe all hydros started with the prefix numbers 261 and shuttles started with the prefix numbers 260. My 416 hydro serial number is 2614146. I have never seen or heard of a later serial number for a hydro. My 416 shuttle serial number is 2600262. I think my hydro and your shuttle are very late production models. I've heard some were assembled in 1974, before the plant was sold and parts were moved, destroyed. They made many more 410's than 416's, and even fewer 414's which were shuttle only (supposedly) If production of the the 400 series ended before the 4500 mark I would say 2500- 3000 would have been 410's (6 speeds& shuttles)and 414's, (shuttles) that would mean that there were approximately 1500-2000 416 hydros and shuttles produced. The real unfortunate thing about low production machines is that while they were much rarer than Cubs and Deere's, they don't and can't have the fan base big production tractors do. On the plus side feel for Sears, they have the numbers, but seem to play second fiddle to JD200 series, Cub 3 speeds (understandably do to rear end), Wheel horses, and Bolens, etc. They were and are a underrated machine. If anyone can prove or disprove this info or add to it please do, I know Hamm and Phil are walking encyclopedias on these AC/Simp machines.