Thanks for all that info! I am already on cumminsforum and have been doing my homework on these trucks. The main difference from my jeep to this is that everything is bigger - parts AND prices.
Quote:
Originally Posted by slowmover
While a TDI would be nice, a CTD sure is practical!! 
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How about a CTD TDI? It is a turbo, and it is direct injection.
Also, I don't really understand how a taller rear end worsens my towing ability... I can just stay in a lower gear a little longer, no? Sure, for a given gear, the torque at the wheels will be less, but I don't generally shift based on road speed. I shift by the engine's speed. Maybe my thought process is skipping some detail, but I will still have the really short first to use. So, essentially I will move a gear down in normal driving
I'm sure someone can chime in to clear it up for me
Here are the overall ratios with the given rear ends. Note that first in 2.89 is still not as tall as second with the 4.10.
Code:
Trans 4.10 3.54 3.07 2.89
First Gear 5.61 23.0 19.86 17.22 16.21
Second Gear 3.04 12.46 10.76 9.33 8.79
Third Gear 1.67 6.85 5.91 5.13 4.83
Fourth Gear 1.00 4.10 3.54 3.07 2.89
Fifth Gear 0.73 2.99 2.58 2.24 2.11
Ratio Jump
(1-2) 1.84
(2-3) 1.82
(3-4) 1.67
(4-5) 1.36
Also, here is the dash:
