so It sound's like the Mack I showed with a 505 and 3.79 rears would be ample around here. I've been driving big trucks for a little over 6 years and most of that experience is with heavy equipment, I just haven't ever spec'd a truck out before or paid attention to what I was driving in terms of motor and drive train so I am trying to figure out what is what. Thanks for the input guys! but one question. how does big hp mean i can't get down a hill without burning up brakes? Doesn't that come down to gear selection before you start the descent?
Heavy Haul
Discussion in 'Ask An Owner Operator' started by HvyHal Gam3ing, May 11, 2021.
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Sorry for not clarifying , some drivers think if you can pull up in 6 th then 6th will get you down with out brakes but we know better. I only drove one truck that had a jake that would hold better than it would pull ( 12v 71) all others , top out and drop 2-3 gears in order to stay off brakes much, considering its same grade and most of the time it's not.
Vampire, God prefers Diesels and Bean Jr. Thank this. -
Oh I see what you meant. Yeah that makes sense.
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But for normal roads, 6-7% grades, I never have to touch the brakes in a high gear, even though I may have to pull it in 7th. Once that ISX gets up to about 1,700rpm, it takes a lot of hill to overcome those Jakes. They are strong.
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