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MTU Alum

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  1. If you can post pictures of your image and where you mounted the camera on trailer, we can try to help. #iworkforGM
  2. The trailer measurement screen is dependent on the type of trailer you select in your trailer profile. I know for 2020, you can only enter dimensions on certain conventional trailer profiles. #iworkforGM
  3. I don't know the exact reason but I was heard it was an emissions concern. The emissions test is totally different between class 3 and 4. You can see how much the L5D is derated vs L5P to pass emissions. If you have to do the same to L8T, it may not be worth the trouble. Navistar may not want to screw with it as well. Navistar runs the program and we just supply cabs and engines. Electric trucks are ultimately going to keep the L8T around. The electric trucks are class 2 vehicles and supply credits to keep the L8T around. #iworkforGM
  4. I'm not going into details. You ultimately need to manage all the fluid temps and emissions to be pull long grades at altitude. If you compare the three brands, only ford does it signifantly better. None of three brands tested on the same day with same trailer and weights. Ford and Ram tested in winter where as Chevy tested in summer. The Ram tested with 2000 less lbs. The L8T was designed as a fleet engine where reliabilty is the most important factor. It may not win many races but it will go to work everyday. #iworkforGM
  5. You have your opinion and I have mine. Mine is based on running grades with powertrain calibrators. The heat rejection is high on this L8T and you have to control it eventually by keeping the rpms lower by commanding upshifts, denying downshifts, and/or pulling spark.
  6. Unless the engine is telling it not to shift. Things are not always as they seem. #iworkforGM
  7. There are a few work truck trim level that don't have cruise. Above that trim level, it is standard. #iworkforGM
  8. The buttons are on the steering wheel. #iworkforGM
  9. This is not true. Ford and GM initially worked together on HD trans. They decided not to continue the relationship and GM worked with Allison to complete the project. I'm not sure where ZF part is coming from. ZF has never been involved with GM. #iworkforGM
  10. I believe Firestone does not sell destination to oems. It is only an aftermarket tire. The aggresive tire market is growing and they are difficult to develop to maintain off road ability without making tradeoffs in handling, tire uniformity, rolling resistance, noise passby, or stopping distance. There is some new tech coming that helps balance those. You will see some aggressive tires in future with a better balance. #iworkforGM
  11. Hankook likes to sway with conventional trailer. MT and other aggressive tires can be not great trailering tires due to having softer compounds and tread blocks that are not as stiff. The load rating on the tire has no bearing on the tires ability to trailer. #iworkforGM
  12. Torsion bars don't necessarily change for the GVW to change. GVW is more about weight distrubution front to rear. Front axle weight determines the FGAWR and torsion bar assuming the truck does not have any options that raise front gawr. #iworkforGM
  13. There is not anything out there for calculating payload. The payloads listed on internet are base model payload. Tire/wheel, sunroof, fifth wheel prep, and spray in bedliners are options that have significant mass inceeases with them. #iworkforGM
  14. The hankook tires only lower coventional towing to 12,000 lbs. The payload and gooseneck numbers are the same as the standard 18 or 20 tires. #iworkforGM
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