HD21-P

Justin_WV_ wrote: No it is not broke. Just getting wore and starting to chip on the corners.

You can build those back up but not with hardware store type welding filler metal. Post up a photo; maybe I can help.

I just popped sprockets on and off of an older 21A I think they were and a couple may be surplus to the owners needs. They however are the spoke type sprockets from an earlier tractor than this one.

I would like to see photos of the worn sprocket to ascertain path. That is probably an early 70's series tractor. If so it should have bolt on segments to the rear sprockets.

Justin_WV_ wrote: Really Struggling with uploading photos! Sorry!

I know this site is a bit difficult to master posting photos onto but If you can resize down to 1024X768 or so they do very well fitting the screen.

To me that tractor appears to be a 21B series of the early 1970's with an older undercarriage installed. Many of the parts were interchangeable between the P and B series IIRC. That top roller, and the sprocket I feel is older than the tractor.

I see the one chipped tooth on the sprocket. If this is the worse case scenario, run it some more. The gullets, remaining teeth, rail height, and shoes look to have quite a bit of service life left to them. That top roller is showing it's age however. Probably a hodge podge of parts to keep the old girl operational but that's what it takes sometimes. I'd wager it's a pretty good project and not really for the feint of heart as some of this stuff is damned expensive to work with if you cannot perform many of the tasks yourself.

Tractor serial number should be on a tag riveted to the firewall and stamped into the right side finals casting, or one the rear of the finals casting, (still on the right side). That would start to drill down to what the tractor actually is.