D8 2U fact or fiction??

From what I get outta the parts books the 2U came with track chains thats macth no other part no. But they used the same drive spocket as 13A,14A&15A and the 2U books shows a field replacement for chains that were used on the 13A,14A&15A. All 4 machines used same sprocket and all had 8in pitch

Here is some info I have acquired:
The 1H, 8R, 2U, 13A, 14A/15A all use the same links.
At 2U 11090-up they went to 39 sections from 38.
The Group Parts # is 1S8845 (39 sections)
RH master link # 1S8841
LH master link # 1S8842

RH link # 1S8839
LH link # 1S8840

At one time even a segmented sprocket adaptor ring was available.

Don't know about Cat being the only source. Doesn't seem right to me.
Try these numbers for conversion to Berco.
Also could try the Cat Classic line (more competive)

I suspect price of new replacement is the reason you can't find good used.

Should be able to squeeze another 200-300 hrs out of that undercarriage before the ride gets to bumpy😄 😄

PS: You have the correct serial number to production year match.

OM is your 2U parts book late enough to show the field replacement with the same as A ser .no. machines?

Willie,
I show the same links at 2U-23537 being used on the 13A and part production of the 14A/15A. Is that your question?

All those 1S numbers I'm quoting are from much later conversion numbers showing the same track assembly used on the D8, E, F, D, G, 583C, E (8in pitch)(3/4 bolt hole sealed)

Definitely was available after market.