Popular Post Piravic Posted April 7, 2012 Popular Post Share Posted April 7, 2012 First time poster, long time reader. Thought I would post some pictures of my new 2012 Granite. Took delivery in November 2011 and thought I would get a few pictures in before I took off the dump box extendors we installed for snow removal in the winter. Great truck, great engine. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/ Share on other sites More sharing options...
REEL ADDICTION Posted April 7, 2012 Share Posted April 7, 2012 Welcome nice truck how many tons can a truck like that carry legally Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-112984 Share on other sites More sharing options...
Olivetroad Posted April 7, 2012 Share Posted April 7, 2012 NICE TRUCK! Nice looking as well - you earned your first "like" on your first post - what are the truck's specs? Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-112989 Share on other sites More sharing options...
JumperAndSon Posted April 7, 2012 Share Posted April 7, 2012 Wow! That's one heck of a truck. It just earned you some respect. Does it have an MP8?Ben Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-112990 Share on other sites More sharing options...
Piravic Posted April 7, 2012 Author Share Posted April 7, 2012 Thanks. I always think the look of my trucks is an important reflection of my company, but at the end of the day if the tuck can't perform it's not worth much. Legally the truck can load up to 19 metric tons, so about 21 imperial (us) tons.The truck has a MP8-425C, coupled to an Allison 6 speed automatic. This was probably the toughest decision I had to make when purchasing it. All my other trucks always either had 18 speed Mack or Eaton Fuler and I was skeptical about the Allison. Due to the fact we do lots of work in the city center of Montreal and alot of the time it's stop and go traffic all day long I thought the Allison may be better suited. After 5 months with the truck I'm now pleased to say I made the right choice when it comes to the transmission.The rest of the specs are Mack Air 46,000lbs. rear suspension with merritor AT-46 rear axles and Mack FXL-18 front axles with 18,000lbs taperleaf suspension. The truck is a twinsteer which mack does not offer stock (unfortunatley) so the transformation was done by Simard Suspension in Quebec City. It's has Alcoa 315/80R22.5 aluminum wheels in the front (2 axles) and Alcoa 11R22.5 in the rear. The dump body is a Lagace LF400, 18-1/2' and made with Hardox wear plate steel.Overall I've been very pleased with my purchase. It's been now almost 25 years that my families fleet of trucks have included a Mack and i'm pleased to say that i'm certain that will continue. Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113001 Share on other sites More sharing options...
REEL ADDICTION Posted April 8, 2012 Share Posted April 8, 2012 Thanks for the reponse Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113154 Share on other sites More sharing options...
Green Dash Posted April 8, 2012 Share Posted April 8, 2012 Welcome, that is a very nice truck. Simard Suspension also did a great job in making the second steer axle look as if it came from the factory.I was skeptical about automatic/automated transmissions and the first time I drove an Eaton UltraShift i was convinced that trucks were meant to have manual tranmissions. Then I had the pleasure of doing some local work with a 6 speed Allison behind a 380 hp MaxiCruise and did not want to give it up. I was doing p&d work at the time which involved plenty of stop, go, and backing in hilly terrain at various weights and the tranny performed flawlessly.It's also good to see a another fleet whose owners are loyal Mack users. Quote Jim Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113165 Share on other sites More sharing options...
slpwlker Posted April 8, 2012 Share Posted April 8, 2012 Great looking truck Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113201 Share on other sites More sharing options...
Piravic Posted April 9, 2012 Author Share Posted April 9, 2012 Thanks Jim. All of our tri-axle twelve wheel dumpers have similar setups here in the province of Quebec. For the most part they always look like they are from the factory when they have a tight 76" - 80" spread between axles. I have seen some questionable set-ups by some less reputable companies that do these types of transformations. Simard is by far one of the leading innovators in this department in the province of Quebec. They do really great suspension set-ups for the twin steer. I opted for the traditonal twin steer with taperleaf suspension, since its tried, true and very reliable. They offer Full-Air front twin steer set ups with the retractable 2nd axle. Really cool stuff, but from speaking to some freinds who opted for this more costly system they have yet to really see the benefit beside ride comfort. This new system also needs some refining so they told me it's not unusual for parts to break and the truck to have to be sent back to them for the repair (under warranty luckily). Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113539 Share on other sites More sharing options...
granitefan713 Posted April 9, 2012 Share Posted April 9, 2012 Awesome truck man! I love it, even more so because it has an Allison! Quote http://www.flickr.com/photos/granitefan713/-Dave Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113563 Share on other sites More sharing options...
Piravic Posted April 10, 2012 Author Share Posted April 10, 2012 Thanks Bulldog. As I mentioned in previous posts I think from now on my dumpers will have Allison 6 speeds since they are esstially in stop and go traffic all day long. I'll leave the 18 speed Eaton to my highway tractor that does our bulk aggregate transport. Quote Link to comment https://www.bigmacktrucks.com/topic/24385-granite-gu813-tri-axle-dump/#findComment-113737 Share on other sites More sharing options...
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