Mack newbie Posted July 30, 2019 Share Posted July 30, 2019 I’m new to the forum trying to learn all I can about Mack dump trucks. I was given the assignment by a non-profit I volunteer on to find an R685 single axle dump truck. Didn’t know it was going to be such a needle in a hay stack. Finally found one. It’s a 1986 RD685P with an 11’ dump bed. It also has what I’m told is a “hard nose” or steel nose. Looks different from all the other R685’s I looked at. It has a twin stick transmission I think they call a 6-speed. I’d like to learn more about the engine, transmission, and the steel nose. It really looks cool. Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/58366-r685-single-axle-dump-truck/ Share on other sites More sharing options...
alex g Posted July 31, 2019 Share Posted July 31, 2019 If you give serial numbers to a Mack dealer they should be able to tell you specs on truck. There should be a tag plate on injector pump which will tell you the engine and HP. Send pics if you can we'll tell you what we can Quote Link to comment https://www.bigmacktrucks.com/topic/58366-r685-single-axle-dump-truck/#findComment-429067 Share on other sites More sharing options...
Phase 1 Posted July 31, 2019 Share Posted July 31, 2019 If "It really looks cool" - show us pictures!!! Quote Link to comment https://www.bigmacktrucks.com/topic/58366-r685-single-axle-dump-truck/#findComment-429073 Share on other sites More sharing options...
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