Weren't they delivered with two axle power?
Thanks Corey - that is the latest CLW power iteration. No wonder it runs so well. Except for the Delrin chain and U joints, I regard that setup as the best of the commercially available Diesel power.
By "commercially available" I am excluding the excellent work done by Jay C, MMW, Kleinschmidt, Jerry Snow, Henry Bultmann - you get the idea.