[phil]

Good info on specifications

allpar.com/trucks/ram/ProMaster.html

 

[SteveSS]

Good info allpar.com/trucks/ram/ProMaster.html

Thanks. This is the first reference I've seen to final drive ratios being different:
1500 3.16
2500 3.43
3500 3.86
Is that still true? I don't recall it coming up in discussions here. It will reduce gas mileage a bit, which further supports the consensus: there is no advantage to a 3500 unless you need the EXT option, like I do. Sadly, now I know I'll never post the highest gas mileage.

How about fun per gallon?

 

[phil]

I believe the ratios have not changed.

Looking at the GVWR, GCWR, curb weight, payload and GAWR numbers there is not a big difference.

 

[Zyzzyx]

Thought I remember early discussions where folks compared RPMs at the same speed between models, all the same.

I think those different ratios were published in REAL early promotional material and continue to get used. If they were that different, I wouldn't expect any of the 3500s to get the same highway mileage as a 1500.

 

[RDinNHandAZ]

This was discussed and we seem to have come to the conclusion all are the same.
See:
http://www.promasterforum.com/forum/showthread.php?t=35202

 

[RDinNHandAZ]

I have a FCA Specification sheet that shows all the ratios as the same for Diesel. A different one for all the Gas. But only one for each.

 

[phil]

RD I'm confused about your post,

I agree all diesels gear ratios and final drive ratio is the same regardless of model.

Your second image and your statement about the gas version I'm trying to figure out.

I went to the Ram Promaster build page the final drive ratios are as followed;

1500 is 3.16
2500 is 3.43
3500 is 3.86

All the information that I can find indicates that the transmission gear ratios are the same whether it's a Dodge, Chrysler or Ram product. If anyone knows something different please educate me.

RD, I think we are saying the same thing, I just want to remove my confusion.

 

[RDinNHandAZ]

My .PDF is for 2015 and has sections for 1500, 2500, and 3500 when the specs are different like GVW but one column when they are all the same. It was put out by FCA media as you can see. I’ll try sending it to you as posting a long .PDF is a pain. Expect a PM. Post up your source url if possible. Having a diesel I have no dog in this! Be careful as RAM 1500 means a pickup truck NOT a promaster.

 

[phil]

Went back to build & price page and the final drive ratios are displayed for the 2016 models, but for the 2017 models some odd negative decimal number shows up.

middle right hand side click on View Standard Features

2016
www.ramtrucks.com/hostc/bmo/CUT201600VF1L11A/2TA/configurator.do#/powertrain

2017
http://www.ramtrucks.com/hostc/bmo/CUT201700VF1L11A/2TA/configurator.do#/powertrain

 

[RDinNHandAZ]

Thanks Here is a URL for a very early set of specs for 2014’s Many errors but it does show different ratios.
http://r1.forconstructionpros.com/f...2013/03/2014-ram-promaster-specs_10898793.pdf

 

[RDinNHandAZ]

I am convinced Phil has it right on the ratios of the gas PM. His post #9 above convinced me that FCA thinks they are different. BTW Chrysler has been sued by owners who were sold a truck which did not have the ratio it was supposed to. PM vans- not so much. Thanks given for the clarification Phil

 

[phil]

what a mess, now the 2017 build page is messed up.