Just a refresh that I'm looking for good condition long track frames that are used on 5U13273 and up D2s. These take 33 link chains. If they come with covers, even better! : ) Shipped to 14534 and I can use Fastenal if not local. I don't need blade ram frames that may be on them.

Refreshing - still interested in track frames from a D2 above serial # 13237, which have the slightly longer frames to match my tractor.

Hi Scott, I'm refurbishing mine currently to use (new idler mounting channel) but would prefer to just find a good usable set. I don't really want to make a new set myself because of the effort and I doubt I would end up with frames straight enough to satisfy my OCD. Plus virtually nothing on the current frames are reusable - even the pivot tubes would need to be fabricated rather than gluing the rusty old existing ones into new channel

Man, if someone could build them for me, I'd be like a pig in mud. My problem with the fabrication is keeping everything straight. Even the two pieces I'm adding on are already crooked, so I'll be hacking them off and trying again. The only components that I think are "special" are the channel that has a broader flange on the bottom. I was looking at a dealer leaflet that I have for the J-series and it actually called that out as a feature. Can't remember by how much but maybe 3/4 to an inch. But outside of that the dimensions are basically C5x9. I think that would be sufficient and I'll find out when I finish replacing the two pieces that the idlers ride on The three webs between the channels looks to be 3/8 (basically some flat with two bends in it, and the curved plate joining the top of the two channels is somewhere between 3/8 and 1/4

Interesting, thanks for posting that Gary, I was under the impression that it was a Cat special. I'll have to enquire with the local steel joint about availability. I've been raiding their seconds pile which has proved very fruitful. I guess there are a lot of offcuts that aren't of much use to anyone except a backyard hobbyist. Can you help me with the spec above - I can see one flange width listed but not the other. What would be the ship channel for the D2's channel which is height: 5", thickness: 5/16, top flange: 1 3/4, bottom flange: 2 1/2. I don't think I see it listed. It has the thickness of the MC3x7.1, the bottom flange width of the MC4x13.8, and there doesn't appear to be a web height of 5"