Predictions for the one ton diesel HD shootout

4x4ord wrote:

Cummins12V98 wrote:

parkersdad wrote:
It doesn't matter to me. I will take ram over RM (recall motors) or CMADD (can't make a decent diesel any day. These tests mean nothing to me. Cummins is the only medium duty diesel in the group. Everything else is light duty. Cummins is built for pulling and that is all that matters to me.

You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

I am not necessarily doubting your numbers but I would like to know where you get them from. I would think the three diesel pick up truck engines will outlast the trucks they are put in in 99% of the cases. Very few people actually wear out an engine regardless of whether it is a Cummins diesel or a KIA gas engine. As for the transmissions I have seen ratings suggesting the Aisin and Allison are both rated for about 850 lbft of torque. Ford rates theirs considerably higher (1400 lbft) yet they all three weigh about the same and you seldom hear of any failing transmissions in the new diesels.

I agree all the trans behind big 3 diesels are good these days.

As far as the Allison in the Light duty/HD pickups VS a medium duty application. I was told personally by Bill Kondolay of DTT a premier diesel transmission builder that the Allison is not the same as what comes in the medium duty trucks/motorhomes. I have read this other places but I can't tell you where.

Turtle n Peeps wrote:
I say:

#1. GMC

#2. Ram

#3. Ford

:B :B :B :B

No peeking allowed.

I say:

#1. GMC

#2. Ram

#3. Ford

:B :B :B :B

ANOTHER OFF TOPIC ALERT!: The Allison in the Chev/GM is an Allison - it just doesn't need to be that big to handle fartin' little pickup truck torque. Allison RDS ratings

On topic:

Prediction

1. Ford - most HP at 3000 eleventeen rpm where we always use our trucks.

2. Chev/GM

3. Ram

more coffee...

4x4ord wrote:

Cummins12V98 wrote:

parkersdad wrote:
It doesn't matter to me. I will take ram over RM (recall motors) or CMADD (can't make a decent diesel any day. These tests mean nothing to me. Cummins is the only medium duty diesel in the group. Everything else is light duty. Cummins is built for pulling and that is all that matters to me.

You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

I am not necessarily doubting your numbers but I would like to know where you get them from. I would think the three diesel pick up truck engines will outlast the trucks they are put in in 99% of the cases. Very few people actually wear out an engine regardless of whether it is a Cummins diesel or a KIA gas engine. As for the transmissions I have seen ratings suggesting the Aisin and Allison are both rated for about 850 lbft of torque. Ford rates theirs considerably higher (1400 lbft) yet they all three weigh about the same and you seldom hear of any failing transmissions in the new diesels.

ON EDIT:

Ratings I saw on the Aisin were 850-950ftlb of TQ, It already has 850ftlb of TQ coupled with the Cummins....The 68RFE is a light duty tranny with 800ftlb of TQ and the Aisin is again, a medium tranny and seeing as how I'm keeping it stock, I should be good:)


But as you've stated, I don't read on these or other forums about the Big Three's tranny's wearing out and breaking down with alarming frequency...., going by what I've seen and read of course..

Cummins12V98 wrote:

parkersdad wrote:
It doesn't matter to me. I will take ram over RM (recall motors) or CMADD (can't make a decent diesel any day. These tests mean nothing to me. Cummins is the only medium duty diesel in the group. Everything else is light duty. Cummins is built for pulling and that is all that matters to me.

You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

I am not necessarily doubting your numbers but I would like to know where you get them from. I would think the three diesel pick up truck engines will outlast the trucks they are put in in 99% of the cases. Very few people actually wear out an engine regardless of whether it is a Cummins diesel or a KIA gas engine. As for the transmissions I have seen ratings suggesting the Aisin and Allison are both rated for about 850 lbft of torque. Ford rates theirs considerably higher (1400 lbft) yet they all three weigh about the same and you seldom hear of any failing transmissions in the new diesels.

The real point of all of this nonsense is ya don't need what ya don't need.

chevman

Cummins12V98 wrote:

ksss wrote:

Cummins12V98 wrote:

parkersdad wrote:
It doesn't matter to me. I will take ram over RM (recall motors) or CMADD (can't make a decent diesel any day. These tests mean nothing to me. Cummins is the only medium duty diesel in the group. Everything else is light duty. Cummins is built for pulling and that is all that matters to me.

You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

Actually he is not correct. GM used the 6.6 in medium duty trucks. I have one in my 5500. Allison is de-neutered? Interesting.

Yes, the Allison in the pickup line is not the same as in the Medium Duty application. The duty cycle of the Cummins is around 350K and the GM and Ford are around 250K.

Im on its third life then :B

gmcsmoke wrote:

Cummins12V98 wrote:


You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

If neuter means to castrate and de-neuture is the antithesis then is the allison a eunuch or simply did not, not get castrated.

Good one!

Got that one from my Dad. He always called the 2nd gen Dodge's with a V10 "de-neutered".

I am sure someone with more specific knowledge will clarify what I am saying about the light/HD allison application.

They are good not saying they are not but not the same as Many Medium Duty applications.

Cummins12V98 wrote:


You are correct!

Don't forget the Aisin trans is a true medium duty and not de-neutered like the Allison in the GM's.

If neuter means to castrate and de-neuture is the antithesis then is the allison a eunuch or simply did not, not get castrated.