[jlb27537]

quote:Originally posted by Arizonacouple

LOL Jfaberna. Okay my questions seem endless. But I'm learning and isn't that the whole purpose of MOC. I received a copy of a sticker on a Ram that I won't buy but on the sticker they mention axle ratios. My 2500 has a 3.73. The sticker Ram has standard 3.73 but in the options section it goes like this:
3.42 rear axle ratio
4.10 rear axle ratio...................$50.00

What am I looking for in a rear axle ratio and even if I see this on a sticker should I verify exactly what is installed and how can I tell? Thanks.

Peter, That vehicle has a 4.10 axle ratio. My '12 Ram has a 3.73 and it works for me. With my weight a 4.10 is overkill and since I spend time out west feel a 3.42 is just too tall.

Now, if the truck has the Aisin tranny, you might consider the 3.42. The 1st and 2nd gear are lower than the 68RFE tranny and the Cummins engine in the trucks with the Aisin tranny is just a bit more HP and TQ.

But the Aisin tranny is like a $3K option and I just do not need that much pulling power.

The lower number (3.42) will give more economy, the higher number (4.10) will give more pulling power.

Jim