We have an R4 , that was fitted with a D4-7U engine . Did not do the conversion ourselves , but I would think R4 and 7J back ends would not be too different.
A fairly common event to interchange....
The grader engine however may not be the best choice as the oil pan, oil pump and scavenge system, flywheel and flywheel housing, clutch, etc is not the same as the tractor.
Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.
Chapter Fifteen
| Historic Santa Margarita Ranch, 20000 El Camino Real, Santa Margarita, CA 93453, USAChapter Thirty
| Hartley - South AustraliaChapter Two
| Newby Hall, Ripon, Noth Yorkshire, HG4 5AJChapter Two
| Freshfield Farm, Sloop Lane, Scaynes Hill RH17 7NP UK
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