Track chain interchanges

Eddie Bedwell very kindly gave me this book last year, is this what you are looking for?
regards
Mike

Hi Mike,
I'm planning new chains for my D2 in summer. Would the book list my options? My current understanding (which could be way off) is that one would use D3 chains, and redrill the grousers for the different bolt pattern, and remove a link so that it's 30 total (regular track frame/idlers).

I doubt you will find the D2-D3 conversion in the manual.

You use the D3 chains and pads but you need to change to a D3 sprocket ring because even though the pitch (6.125") is the same the bushing diameter changes from 1.69" to 1.85". If you change to D3 rollers you will have to add a spacer bar to the mounting because the D3 rollers are smaller diameter.

Hi Neil, new D2 chain is still available from Italy, I was offered it here in Oz for about $1,000 a side, my suggestion is to put a advert in the wanted section here and in the ACMOC magazine for a good secondhand set, you might be lucky and find a good set of tracks in your back yard for $1,000 or less, that's cheaper than $2,000 for new chain plus freighting them, plus $250 for new nuts and bolts, plus your labour removing and fitting the plates.
regards
Mike

Good advice Mike although I have the shortcoming of liking the bling so there's every chance that I'll end up putting in an order for new....Chances of finding anything good around here are probably minimal - the left coast is where all the good stuff is. I think the chains on the 5U are ok but the 3J are shot, and I want that unit pulling ploughs and disks all day long so they need to be good.

I like the way your mind works Neil, D2 bling, too bad you are not visiting Oz, I'd line up a set of new chains from my mate Joe to go in your suitcase.
regards
Mike

Thanks Mike,

I think that's pretty close to what I was thinking about. I thought I'd seen a book that showed about all the more popular critters along with dimensions. In particular I'm looking to see if any other manufacturer's track chains would fit a John Deere 40C crawler. Not my critter, I'm doing some work on it for the owner and thought I'd check to see what I could find.

Thanks Mike,

I think that's pretty close to what I was thinking about. I thought I'd seen a book that showed about all the more popular critters along with dimensions. In particular I'm looking to see if any other manufacturer's track chains would fit a John Deere 40C crawler. Not my critter, I'm doing some work on it for the owner and thought I'd check to see what I could find.

[quote="ol Grump"]Thanks Mike,

I think that's pretty close to what I was thinking about. I thought I'd seen a book that showed about all the more popular critters along with dimensions. In particular I'm looking to see if any other manufacturer's track chains would fit a John Deere 40C crawler. Not my critter, I'm doing some work on it for the owner and thought I'd check to see what I could find.[/quote]

I looked in the crawler section of the book and it only lists John Deere 450 upwards,450B, 450C, 450D, 455, 550, 555, 655, 750, 750B, 755, 850, 855 etc, no 40C unfortunately
regards
Mike