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bruiser

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Posts posted by bruiser

  1. I just got mine about a month and a half ago. Went from 06 Volvo 460 13 speed to 2015 gu713 445 with allison. Absolutely love it. I went to Allison dealer and had them reprogram downshifting from 6-4 to 6-6, in other words it would go right from 6th to 4th on engine brake (almost put you through the windshield), now it stays in every gear down to about 1100 rpm unless I downshift manually then it is about 300 rpm sooner. Also under load it downshifts by rpm and throttle position in other words if you are pulling a hill with your foot to the floor it will downshift sooner than if you are running at say 75%, very helpful if you are just about to the top ease up on throttle and let current gear take it up and over. Fuel milage went from 5.3 in Volvo to 5.0 in mack. Run app. 360 miles daily def consumption is 2 to 2.5 gallons daily. Seems to do a passive regen about every 2500. No active regents at 7800 miles.

  2. I appreciate the replies, I was probably thinking along the same lines that this generation of emmissions is to be avoided. Even under warranty down time is money out of pocket. Probably wait another year or so to see if the def trucks are going to be reliable. ...I think I'll go buy a new pick-up for now.

  3. Just wanted to get some opinions on the motors of this generation of emmissions. Want to trade up but not all the way to a brand new one. 160k for new triaxle dump seems a bit too steep, 100k for something around '09-'10 does too but it would be manageable. Have '06 Volvo now pretty happy with it except egr valves every now and then.

  4. Mackpro68 This is real easy to check if you have an 18. While in any low range gear, shift the range splitter to high and then you should be able to split that gear. The lockout in the gear shift works off of the range spitter, (heard tell you could take it apart and file the lock off, don't know for sure).

  5. My employer has Eaton Auto shifts 10 speeds in all our newer Macks.We have a clutch for start up and PTO's.They work OK but off road they are't so great.We haul dry cement up to 139000# gross.They take a little getting used to.I usualy use the manual buttons up to 5 or 6,sometimes they don't want to shift in 2or3 ,go to top RPM and if you back off they slow right down and bounce around like you don't know what you are doing.It seems the older ones don't do it as much,maybe they wear in or need adjustment.

    Pete

    How about some numbers on the fuel mileage difference in comparably equipped trucks. Also how does the auto perform compared to standards on climbing a long grade. I'm sold on the auto just dont want to lose big mpg.

  6. Don't know what happened to my previous reply so if this happens to be redundant please forgive me. Have you considered using a steer axle from a 4 wheel drive? I realize what you were saying about dumping the air but not lifting the axle, it seems to me thats just asking for trouble the first time you high center that axle the only thing thats going to prevent it from rising is either the frame or the tires hitting the body.

  7. How about some real numbers from you guys that have allisons in a vocational (dump) truck. I'd like to know what mpgs you are getting and what kind of miles (city, highway, hills, flat, etc.). Also how well does it pull the hills compared to other trucks. In my area (W. Pa) there is a Granite and a CL with Allisons and they seem pretty impressive. My only concern with the mpgs comes from a conversation I'd heard at my mechanics concerning these trucks that the fuel mileage was better than what I'm getting in my pick-up (12mpg) is this possible in a tri-axle dump or doesn't somebody own a calculator? I've been passed by the Granite like a freight train going by a ho-bo on a long grade. I have a 460 with 15 speed.

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