2019 RAM & 2020 Duramax IKE roadtrip

[CUMMINZ]

I think this video tells us more than the average joe knows about towing. I have not had a following for three years in my hopes and dreams for a RAM cumminz with 8-10 speed auto. This video should really cause a large crowd of comments as to why we actually see results that we did.
2020 Duramax 3.42 gears with 445 HP 10 speed auto
2019 RAM 4.10 gears with 400 HP 6 speed auto

The load was 14K+ which was only half the ratings of both trucks. The Duramax topped the hill equal to the RAM.

 

[TFucili]

All those gears and still can't outpull the "old tractor motor".

 

[CUMMINZ]

All those gears and still can't outpull the "old tractor motor".

I thought it did pretty good with 3.42s.

 

[jgillott]

All those gears and still can't outpull the "old tractor motor".

Which means that it would be that much better once they get on the 10-speed bandwagon.

 

[TFucili]

I thought it did pretty good with 3.42s.

It did, but with four more cogs, and what 1K more tach to work with the duradud fans would have you believe it would pull the hitch out of the trailer

Honestly, we won't know until they do a dually to dually comparison with 35K in tow. I would suspect the extra cogs will make more difference in that circumstance.

 

[CUMMINZ]

It did, but with four more cogs, and what 1K more tach to work with the duradud fans would have you believe it would pull the hitch out of the trailer

Honestly, we won't know until they do a dually to dually comparison with 35K in tow. I would suspect the extra cogs will make more difference in that circumstance.

The idea it was a dually vs. a single rear end is of no matter. I have always said if any diesel went to an 8-10 speed it would be the biggest stride forward ever. The cummins would have been way out in front with a 10 speed. Anytime you hold a diesel in it's best rpm/tq range for longer and each time you shift gears you are doing better.

 

[CUMMINZ]

Which means that it would be that much better once they get on the 10-speed bandwagon.

ABSOLUTELY...

 

[TFucili]

The idea it was a dually vs. a single rear end is of no matter. I have always said if any diesel went to an 8-10 speed it would be the biggest stride forward ever. The cummins would have been way out in front with a 10 speed. Anytime you hold a diesel in it's best rpm/tq range for longer and each time you shift gears you are doing better.

My point was not the the DRW vs SRW was an issue in and of itself, it wasn't, but it limited the GCWR for this test. So, when they can pull a 35K load, then we'll see.

 

[Newsa]

Wouldn't the wide torque band of the cummins make the 6 speed w/cummins almost as good as a 10 speed w/cummins????

I wouldn't want a 10 gear. Maybe an 8 gear at most

 

[CUMMINZ]

My point was not the the DRW vs SRW was an issue in and of itself, it wasn't, but it limited the GCWR for this test. So, when they can pull a 35K load, then we'll see.

The issue with this test is they were only pulling 14K+. The cummins still should have walked away with the 4.10s.

 

[Ozymandias]

More Gears = More Speed and Less Fuel Consumption.

Simple Math.

So I'm in for the 10 Speed transmission.

 

[CUMMINZ]

More Gears = More Speed and Less Fuel Consumption.

Simple Math.

So I'm in for the 10 Speed transmission.

Ozy. I see you have an 04.5 with 48RE. I had one I ordered. When RAM stepped to 68RFE and 6 speed it was like absolute night and day difference in pulling. One of the big differences between the 48 and 68 is the reverse gearing. Many times backing my rig up a steep hill in the RV park in the NC mtns I had to lock in 4x4 low to keep the trannie from sounding horrible. The 68RFE you simply tap the throttle and it will go up a tree.

 

[Ozymandias]

Yep, i have the 65RFE in my Durango, it's like you say, like night and day to the old 727 architecture.

I'd love to install* a 68RFE in my Ram but i shy away from the cost and even more from the electronically integration of the unit into the trucks setup.

* i googled and read a lot about this in the past and rejected the idea later.

 

[TFucili]

Yes, backing a heavy load with a 48RE was not fun. 4 Low worked, but the driveline didn't appreciate it if there was much turning involved.

 

[NIsaacs]

Yes, backing a heavy load with a 48RE was not fun. 4 Low worked, but the driveline didn't appreciate it if there was much turning involved.

Yup, six speed manual is no better for backing or 1st gear launch uphill for that matter. The gears are too high.

 

[JR]

Yup, six speed manual is no better for backing or 1st gear launch uphill for that matter. The gears are too high.

Still contemplating the 2low kit I see

 

[CUMMINZ]

Another mention use of taller gears with 10 speed.

 

[Cummins12V98]

I thought it did pretty good with 3.42s.

Has NOTHING to do with it. I ran 3.42's towing 29k and did great. 10 speed makes them a nothing burger.

 

[TFucili]

I think Aisin is working on a CVT for 2021.

 

[JR]

I think Aisin is working on a CVT for 2021.

I remember a technology company working with Dana years ago to develop one. We did some installs on Dana's big presses in Toledo and the buzz was on then.They called it something different and it was different from a traditional automotive CVT. I always felt the concept was good but application left something to be desired, at least from a consumer vehicle standpoint.