vansite89 Posted May 29, 2018 Share Posted May 29, 2018 might be ordering a granite tractor soon but dont know of many options. dual exhaust, interior wood trim etc. are things like that available with the 2019’s and newer? it would be pulling a dump trailer and 50 ton lowbed so is the mp8 505 with a maxitorque 18 speed sufficient enough? plenty of power? moderate power? just enough? how will it do on highway hills? just looking to get some questions answered with advice with these newer trucks. Quote Link to comment https://www.bigmacktrucks.com/topic/53436-thinking-about-building-a-granite-tractor/ Share on other sites More sharing options...
gicknordon Posted May 30, 2018 Share Posted May 30, 2018 (edited) You can get dual exhaust, no wood grain trim anymore on the interior. Edited May 30, 2018 by gicknordon Quote Link to comment https://www.bigmacktrucks.com/topic/53436-thinking-about-building-a-granite-tractor/#findComment-399667 Share on other sites More sharing options...
wiserfrombud Posted May 31, 2018 Share Posted May 31, 2018 Powertrain wise, I have the 505c+ with a 13 speed. I only run up and down I 15 from Cali to Canada so I have plenty of pulls. I am always 80,000 lbs and this thing pulls great. I was actually a little leary of a 13 liter coming from a 15 475/1850 ISX and a c15 ACERT 475/1850 before that. This 13 would run with either of those engines all day long and get better fuel economy doing it. With the 18 spd, I couldn't imagine you being underpowered even for 100,000 lbs. Unless you are currently driving something with 800 horse..... Quote Link to comment https://www.bigmacktrucks.com/topic/53436-thinking-about-building-a-granite-tractor/#findComment-399722 Share on other sites More sharing options...
Chzbrgr Posted June 1, 2018 Share Posted June 1, 2018 Have an '18 with the 505 and 18LR, it has the 44s with 4.19s. Grossing up to 115,000. Pulls great. So quiet and smooth, it doesn't even feel like you're working it hard. Tops out at about 78 mph with those gears. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/53436-thinking-about-building-a-granite-tractor/#findComment-399832 Share on other sites More sharing options...
1965 Posted June 1, 2018 Share Posted June 1, 2018 Had 12 model; 505c, 18sp. 3.98’s, pulled great when injectors were good. They love low rpm. It’s according to area on reared ratio. With the gears I had it was set for 55 to 60mph. It would run way faster but not for fuel mileage. Quote Link to comment https://www.bigmacktrucks.com/topic/53436-thinking-about-building-a-granite-tractor/#findComment-399833 Share on other sites More sharing options...
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