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.