Track Idler TD7G/TD8G

I was shoveling the goo from the undercarriage of my TD7G today. As always I pried on idlers, and other moving components to determine wear. The upper mid track idler on right came off in my hand. Way too muddy where it's stored to see what's wrong. I'll go back as soon as it gets cold, or dries out.
I'm sitting here studying the parts book, and service manual.
The book covers TD7G, TD8G, and 100G and 125G loaders. The two manuals both specify the TD7G has 6" pitch, 15" shoes.
The TD8G has...

Track Idler TD7G/TD8G

Track Idler TD7G/TD8G