JDcrawlers Messageboard

Greatly appreciated Lavoy. Ty.

Hello all. Just had a quick question regarding changing tracks. I have a 5 roller 420 that runs great but the under carriage is pretty much shot. Pins and bushings are pretty shot as well as the sprockets. A while back I bought a 4 roller 420 that had been sitting outside for quite some time and the...

Does anyone have the exact measurements that the pins & bushings were manufactured to for these crawlers. Such as the exact O.D. of the pin as well as the length & the exact O.D. & I.D of the bushings. Thx, Mike

It actually is quite easier than Lavoy implies. With a plasma cutter you can cut the hole large enough so that a moldboard bolt is recessed which allows you to weld it in place. As far as the bevel most steel service centers have flame cutting track machines with a head that can be beveled to cut wh...

You can easily make yourself a new cutting edge yourself, Just visit your local steel service center. Most of them carry abrasive resistant bars in a 400 brinnell hardness. I know because we do. All you would have to do is Plasma cut the bolt holes.
Deere 420c
Deere 40c
Deere Mc

Hello Lavoy and everyone. I have a question in regards to the upper & lower rollers as well as the front idlers. I recently purchased a 420 5 roller which I have been tinkering with and was wondering about what to use to lubricate the previously mentioned items. Should I use 140 weight gear oil as m...