Forum Discussion
Travlingman
Jan 16, 2019Explorer II
Cummins12V98 wrote:Huntindog wrote:Cummins12V98 wrote:You have stated this repeatdly.
" I wish they would spec the trucks to their capability, for whatever reason, they don't."
They simply don't have the transmission that can pass the SAE test. You may be towing 30k and no doubt it tows just fine BUT it would not pass the SAE test.
New transmission will no doubt significantly increase the tow rating. Anxious to hear why now with the new transmission they have a higher rating since they said basically there is no need for a higher rating than 22,300#.
Just what is this test?
If it is the "J" towing standard, the only parameter in that test I recall that relates to the tranny is the fluid temp. Since I own one of these, I am well aware of what the tranny temps run, and am very confident that would not be an issue.
If there is some other SAE test that I am unaware of, or I have missed something, please enlighten me.
Look it up, it's the repeated launch on grade forward and reverse. I am sure that is the one it can't pass. SAE J2807
If this is NOT the reason for the LOW tow rating then please explain what is. The engine has plenty of power to do the job.
Remember the Allison is NOT the same in the pickups as it is in the MD applications.
AISIN is the same whether it's in a RAM or another Manufacturers Medium Duty vehicle.
Looks like you are wrong on the Aisin too. Here is the video on the powertrain where he says the new Aisin tranny. video In this next video he talks how they had to beef up the "medium duty" Aisin as you call it to be able to handle the power, around the 5:30 mark. video
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