Duramax L5P is here

Me Again wrote:

blt2ski wrote:
I see the trolls are back..............

Would you prefer alternative facts? Like no Allison has ever failed and none have ever dropped into limp mode with increase power. If we repeat that enough it will become the new truth, right?

I've never said an allison did not have issues. I know of MANY allison trannies of ALL sizes that have blown up etc. I was surprised that my 05 still had the original trans when I sold it at 180K miles. In the past, I have usually gotten half the mileage on an auto vs a clutch in a similar truck doing equal work etc.

At the end of the day, what makes or breaks a rating may or may not be in my or your best interest. Frankly to me my 05 was under geared. I could only go up a 24% grade in first gear at 20K lbs. MY 96 6.5 could do a 30% grade. My navistar with an almight NA 7.3 can do 30K up a 30% grade. The new tow specs only say a min 12% grade. I've gone up drive ways 3-4x steeper than that getting equipment to job sites. That 12% starting is only 1.5x steeper than the steepest freeway grade.

There are a lot of factors as to what makes or breaks a tow rig of any shape or size. HP and torque are not but two of the issues. Axel ratio, tire diam, trans ratios also make or break a rig as to how well it will or will not tow.

Yeah the innards of the above parts too.

I personally only tow a trailer at 2x the gRAWR. So ANY of the current one ton's with a 8-10K RA is only going to get around 20-22K lbs behind them. Otherwise, going down, many times, the tail is moving the dog! going up with the current power specs, no issues. Than again, if you stall out due to too tall of gearing.....all that power does not do one a lot of good if it can not get to the ground.

marty