7U differences.

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Mangoman

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Hello folks,

I'm thinking about looking at a later model 7U. It is advertised as a 1957. I currently own a 1952 sn 7U18985. I am wondering if anyone knows when the oil clutch came in? If it does have an oil clutch, is there limited crossover in related parts? I thought I had heard about different oil galleries in the engine block making things not simple to swap between. I don't suppose it would have in seat pony start? Looks super straight. The track chains and sprockets are sacked but I've got good ones on my 7U. A gaping hole in the exhaust manifold. What's with that? What about the differences between a D4N and later D4D winch? It has newer winch controls. Is that very nice to have? What other differences should I think about?
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Sat, Jun 19, 2021 9:10 PM

Mangoman

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A few more pics
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Sat, Jun 19, 2021 9:13 PM

Rome K/G

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Reply to Mangoman:

A few more pics

Oil clutches on the 7U started with 7U29734, but could be opptioned. D4D winch is a nice heavy duty winch.

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Sat, Jun 19, 2021 9:57 PM

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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.