"gman" wrote:

Hello. I'm new here. Have always loved heavy machinery and hoping to purchase my own crawler loader soon. I'm a pretty decent shade tree mechanic so I'm not afraid to tackle maintenance and repairs. Found a 1966 Caterpillar 933g for sale at a good price but owner says it won't stay in reverse under load / pops out. Any thoughts on what may be the cause and how difficult or $$ it may be to fix? Also my reading on the 933 indicates that it may share drivetrain design/components with the D4. Has anyone heard this too? I plan to use the machine for cleaning out a pond, clearing some land, improving/building farm roads and a hobby. Thanks. I value your wisdom and advice

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Don't hire the King of Obsolete to teach you how to run one of those , as he seems to do all his work backing up which is where your problem happens. Email Catchick for training.