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Towing with gas trucks

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Old 12-08-2022 | 08:47 PM
  #111  
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From: Cedar Rapids Iowa, LOTO, Cape Coral Fl.
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Originally Posted by open87
I would checkout Kill Devil Diesel .

https://killdevildiesel.com/collecti...ngine-packages


I have my 7.3l there in line to be re built. They do a lot of 6.0 and may have 6.0 long blocks in stock if the 6.0 ARP rod bolt backorder has been resolved .
That is one that I am considering. Will be calling them tomorrow.
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Old 12-17-2022 | 12:01 AM
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From: Newbury Park, CA
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Originally Posted by 540Fever
Appreciate the feedback. You’re correct probably closer to 6-6500 with trailer, fuel, etc. I recall checking a couple years back and pretty sure it has 3.42’s in it. I did have a local tuner flash it over the summer and it definitely tows better, but it still was at 4-4500 rpm on the rolling hills. You think a set of 3.73’s would help to give it a little extra grunt and not necessarily need to downshift? I don’t mind taking hills at 55, but it didn’t seem to matter to the truck my speed, it just wants to keep the RPMs high towing up grades.

I was looking at whipples yesterday and know that would do the trick, but it comes at a cost as well. Maybe I’ll start with gears and see how she goes. Already laying the groundwork with my wife on why a whipple “just makes sense” 😂.

After receiving my personal property tax bill yesterday on a 10 year old truck and 8 year old minivan, no F’ing way am I buying a new truck. The county was kind enough to adjust used car values with the current market.

Thanks for all the input from everyone! Definitely helpful for factoring in a decision.
If you are concerned about durability, don't do that! The engineers that designed your engine spent a lot of time testing the powertrain under a variety of conditions, including towing. The engineers put more strain on your engine during testing than you are likely to do while towing. Modding the engine puts stress on the engine beyond what it was designed and tested for. I would leave it alone, and just drive it.

Last edited by Michael1; 12-17-2022 at 12:08 AM.
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Old 12-19-2022 | 09:03 AM
  #113  
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From: Cheboygan, MI
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Originally Posted by Michael1
If you are concerned about durability, don't do that! The engineers that designed your engine spent a lot of time testing the powertrain under a variety of conditions, including towing. The engineers put more strain on your engine during testing than you are likely to do while towing. Modding the engine puts stress on the engine beyond what it was designed and tested for. I would leave it alone, and just drive it.

Whomever did the testing on my 2015 Yukon Denali was and absolute moron. I've spent countless hours fixing gross software issues that any first year programmer should have caught. What I also find interesting is that my AFM system crapped out and I had the entire valvetrain upgraded to non-AFM. I get better gas mileage now than I did with AFM. My last trip down the Ohio turnpike, I was getting over 23mpg at 75mph. My best segment so far is 26.9mpg and I have a leveling kit and 33" tires. I still have to remove the programmed torque convertor slippage which will give me better mpg and increase the life of the torque convertor. When I showed the data logging and event alarming capabilities I had on my Yukon to a GM engineer friend, he asked me to come work at the tech center. I told him I couldn't afford the cut in pay. I'm sorry, but I worked at the Tech Center for a number of years and couldn't believe what went on there. I'm sure there are some really talented people in development, but a lot is lost in production.
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