Those tracks were made by Sherwood models in Canada.
They were offered with some of the many conversions kits he manufactured, mostly for the 1:25th NZG Cat RD8 & RD7's.
Unfortunately he has gone out of business and I am unsure where the dies went.
There was also a guy offering some really nice brass tracks in 1:25th on ebay - I bought a set from him to put on my AMT D8H - but he hasn't advertised for a while.
I think these were made by CCM but I stand to be corrected on that.
Are you planning to build a scale model of dozer? What model?
Wow, that is really nice!!!!!!! Hard to believe you used the AMT kit! I have every issue that has ever been released of that kit including two of the combo kit that has the Loadcraft lowboy and D8H in one box. Pretty rare kit!Here is my AMT D8H with the brass tracks.
It has been converted to a direct drive 36A and is all set up to tow a scraper with a Cat No.29 on the back (usually pulls a 1st Gear Cat 491 but I'm working on a No.80)
The ebay seller of the brass tracks went under the name of stancillp and he is still active. Whether he has any left is a good question.View attachment 108632