jedsled Posted July 6, 2020 Share Posted July 6, 2020 hi guys, I'm looking for a rust free cab for my 87 dm686s, but am only finding r cabs in the condition that I want. What are the differences between the 2? Thanks! Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/ Share on other sites More sharing options...
j hancock Posted July 6, 2020 Share Posted July 6, 2020 The R is a center mount cab while the DM is offset. The firewall, cowl and floor would have to be changed. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455179 Share on other sites More sharing options...
Quickfarms Posted July 6, 2020 Share Posted July 6, 2020 Have you placed a wanted add here?A U model cab is probably the same as a DM 1 Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455181 Share on other sites More sharing options...
terry Posted July 7, 2020 Share Posted July 7, 2020 2 hours ago, Quickfarms said: Have you placed a wanted add here? A U model cab is probably the same as a DM I put a U model cab on a DM. terry Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455207 Share on other sites More sharing options...
41chevy Posted July 7, 2020 Share Posted July 7, 2020 U Model will work just fine, same cab as your DM, just the U chassis/running gear was a lighter spec for OTR use. Cab assembly is same to both. Paul Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455209 Share on other sites More sharing options...
Mike Harbison Posted July 7, 2020 Share Posted July 7, 2020 Hard to find either with the damn exporters buying them up right and left. Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455217 Share on other sites More sharing options...
Ditchdiggerjcf Posted July 7, 2020 Share Posted July 7, 2020 I believe the DM's were the last of the R chassis trucks made. They are still around. Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455235 Share on other sites More sharing options...
mowerman Posted July 13, 2020 Share Posted July 13, 2020 well i know of 2 of them,,,both rust free ,,,,but thier both very far from you .....one in california parts truck other one is in nevada complete mixer,,,been sitting there around 15 years that i know of...let me know if you get desperate...im sure you can find one alot closer...bob Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455779 Share on other sites More sharing options...
Ditchdiggerjcf Posted July 13, 2020 Share Posted July 13, 2020 I saw 2 or 3 sitting in the weeds between AR and IL when I went to get the RS. They are around. Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455789 Share on other sites More sharing options...
Ditchdiggerjcf Posted July 13, 2020 Share Posted July 13, 2020 Nigerians are buying the piss out of them though. I have a DM cab I will give away if you want to come get it. It is pretty well stripped. Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-455790 Share on other sites More sharing options...
mowerman Posted July 16, 2020 Share Posted July 16, 2020 I guess we scared him off ha ha Ha... bob Quote Link to comment https://www.bigmacktrucks.com/topic/63189-cab-differences/#findComment-456024 Share on other sites More sharing options...
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