Yes, the 6004 is chain driven, we have just finished installing one, and to get tension on the chain, there are shims under the mounting points. I think it is made up of two oil pumps and one scavenge pump. Do you have any spare new gears for them? , they are about 1&3/4" long, I think the shaft hole is 5/8" by memory. The Detroit dealers in the States are pretty hopeless on this old stuff, even getting gaskets has become a mission, they recon they are short of gasket paper for manufacturing in the US at the moment. If you come across a original manual , I would be interested in an original if you ever come across one, Cheers Andrew
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Valentine MkV
Covenanter MkIV
Lynx MKI and MKII
Loyd Carrier / English / Candian / LP.
M3 Stuart
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