JST Posted April 18, 2007 Share Posted April 18, 2007 I work for an oil co. We have several really big Macks that we use for rig up trucks. We call one the RD and one the big dog. The big dogs bumper is about chest high. ( how cool is that) The RD is a 74 model I think. Can anybody tell me what RD stands for.Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/ Share on other sites More sharing options...
Lmackattack Posted April 18, 2007 Share Posted April 18, 2007 R is just the sieres . The Early "RD" models were basicly overbuilt R models mainly used in heavy offroad fields. Dont know exactly what the D stands for ? The early RDs Had steel butterfly hoods. at some point they offered one pice fiberglass hoods. Look on the pass side inner frame rail just foward of the front axel. Look for a VIN number stamped there ..."RD688SX" etc..... Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11812 Share on other sites More sharing options...
Doug Maney Posted April 18, 2007 Share Posted April 18, 2007 I don't believe that there is a specific meaning to the model designation of Trucks. Some have sail over the years that certain letters meant different things but I have never been able to verify that. The RD model is simply the heavy duty version of an R model. Meaning heavy suspension, double frame, severe duty features and things like that. Hope this answers your question. Doug Quote Interested in Old Trucks? Check out: www.antiquetruckclubofamerica.org Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11813 Share on other sites More sharing options...
Barry Posted April 18, 2007 Share Posted April 18, 2007 There is an even heavier version of the RD...strictly off road, called the RD888SX! I have a customer that just picked up a couple 1999's from down south somewhere...I'll work on getting some photos. Quote Barry - Watt's Truck Center Parts Manager and BMT Webmaster...1-888-304-MACK Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11816 Share on other sites More sharing options...
HK Trucking Posted April 18, 2007 Share Posted April 18, 2007 And it's a dirty shame that since the V^%#@*o takeover Mack doesn't serve that severe service market any more.Paccar is laughing all the way to the bank. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11821 Share on other sites More sharing options...
JST Posted April 19, 2007 Author Share Posted April 19, 2007 Hey thanks for the replys guys. I talked to one of the boss's today. He has been at the Mack dealership in Enid. I guess they have a custom shop on location there to build what you want as far as beds winches ginpoles etc. I think he orderd two I don't know what the specs are on em though. Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11824 Share on other sites More sharing options...
bulldog man Posted April 25, 2007 Share Posted April 25, 2007 ive got a cousin in OKC & he deals w/ the DEALER In Enid he says the fab shop they have does awsome work . Later Quote You Cant Fix Stupid. But You Can Numb It With A Sledgehammer. Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-11918 Share on other sites More sharing options...
Phase 1 Posted May 27, 2007 Share Posted May 27, 2007 (edited) I don't believe that there is a specific meaning to the model designation of Trucks. Some have sail over the years that certain letters meant different things but I have never been able to verify that. The RD model is simply the heavy duty version of an R model. Meaning heavy suspension, double frame, severe duty features and things like that. Hope this answers your question. DougThe only model I know of that has a meaning to the model letters is the DM which is for Dump & Mixer (this is verified in John Montville's "Mack" book).It is said that the "G" designation stands for Great Western, but that seems like something the marketing department may have dreamed up afterwards. Edited May 27, 2007 by PZ 1 Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-12417 Share on other sites More sharing options...
mackboy Posted May 27, 2007 Share Posted May 27, 2007 hello jst can you put some fotos on the board of those trucks we love to see them thanks Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-12418 Share on other sites More sharing options...
Cfrisoli Posted June 4, 2007 Share Posted June 4, 2007 The only model I know of that has a meaning to the model letters is the DM which is for Dump & Mixer (this is verified in John Montville's "Mack" book).It is said that the "G" designation stands for Great Western, but that seems like something the marketing department may have dreamed up afterwards.The Cab over models MR stand for Mack Refuse. The LE model stands for "low entry" Quote Link to comment https://www.bigmacktrucks.com/topic/2375-what-does-model-letters-indicate/#findComment-12535 Share on other sites More sharing options...
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