umodelnut Posted December 25, 2011 Share Posted December 25, 2011 were the tall air cleaners optional in the seventies? I know mack used the tall air cleaners in the early 70s but in the mid 70s im wondering if they were optional. because in my 1976 bulldog magazine there is u models in there with the tall air cleaners and they were built in 76. i thought mack went to the short air cleaner in like 74 because my u model is a 75 and it has the short air cleaner. thanks , vinny Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/ Share on other sites More sharing options...
Superdog Posted December 25, 2011 Share Posted December 25, 2011 The tall intake pipe was an option,you'd see them on DM's and RD's alot. Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95392 Share on other sites More sharing options...
superc3 Posted December 25, 2011 Share Posted December 25, 2011 Vinny, what do you plan on doing with the U model,are you going to restore, on just fix up and run? Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95401 Share on other sites More sharing options...
umodelnut Posted December 25, 2011 Author Share Posted December 25, 2011 Vinny, what do you plan on doing with the U model,are you going to restore, on just fix up and run?Me and my grandpa are going to restore the truck and take it to shows and drive it in the local parades. Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95408 Share on other sites More sharing options...
umodelnut Posted December 25, 2011 Author Share Posted December 25, 2011 The tall intake pipe was an option,you'd see them on DM's and RD's alot.Why were the tall air cleaners on the Dms alot? was it because of what jobs they usually did or the motors? Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95409 Share on other sites More sharing options...
Superdog Posted December 26, 2011 Share Posted December 26, 2011 I always heard it was to take in cleaner air,out of the dust. Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95455 Share on other sites More sharing options...
Pawel Posted December 26, 2011 Share Posted December 26, 2011 The way I see it, if you install a tall pipe, it gets cleaner air up there and the filter lasts longer. If you install short pipe,it is lighter and generates less drag - important if you drive longer distances with higher speeds.Have a nice dayPaweł Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95458 Share on other sites More sharing options...
MACKS Posted December 26, 2011 Share Posted December 26, 2011 The taller pipe on the DM was also used as a place to mount the mirror bracket.. Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95467 Share on other sites More sharing options...
jaysm35a2 Posted December 26, 2011 Share Posted December 26, 2011 Same as the U , Superdogs right, its to get cleaner air , like DM work's alot off road and at job sights, better to get the cleaner air, Same with the U's , working in the city and things like that so they want cleaner air. Your U was built for highway use so it didnt need the taller cleaner. Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95474 Share on other sites More sharing options...
umodelnut Posted December 26, 2011 Author Share Posted December 26, 2011 Thanks guys!!! I learned somethin new today!! Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95475 Share on other sites More sharing options...
Maddog13407 Posted December 29, 2011 Share Posted December 29, 2011 speaking of the extension pipe. anyone have an original b model air cleaner extension tube? thanks, Matt Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-95809 Share on other sites More sharing options...
mowerman Posted January 5, 2012 Share Posted January 5, 2012 U,R,DM.all used the tall breathers 1966-1972...bob Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-96818 Share on other sites More sharing options...
Mike Posted January 5, 2012 Share Posted January 5, 2012 I was just wondering if a new stove pipe will do the same job?mike Quote Link to comment https://www.bigmacktrucks.com/topic/22314-air-cleaners/#findComment-96820 Share on other sites More sharing options...
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