I've only got these two part numbers to go on...
F81Z-5598-FA N811667-S436
The rest of the part numbers seem to be missing from 'the spreadsheet'
They match and I was told, it's essentially an F350 underneath. I'll hunt around for labels and stamps tomorrow. Ubolt width matches dana80 and brandless 'traction control' rear axle.
I should probably at least figure out the bushing numbers before everything is worn out.
Sorry for being a newb.