Gears

[CBrahs]

My truck has 3. 73's and I have 37's on it. I want to change the gears to more closely match the stock tires. Anyone have any suggestions? I do not want to be doing 2500 RPM to keep up with traffic either. Right now I am 1800 RPM doing 65 (at least that is what the speedo says :--) ). I don't know how close the dealer got to calibrating the speedo after installing the tires.

 

[ENafziger]

I'd think 4. 10's would help you out... and they're available for the AAM axles. Do a search for a member named klenger. He has a spreadsheet that will calculate rpm for you based on tire size, gear ratio, etc. --Eric

 

[CBrahs]

thanks Eric. Will look him up to see what I can get.

 

[klenger]

My ears are burning



Here's a link to the excel worksheet http://www.klenger.net/dodge/general-reference/gear-speed-calculator.xls



and here's a pdf copy if you don't have excel http://www.klenger.net/dodge/general-reference/gear-speed-calculator.pdf



With the Excel version, you can tune it to your little heart's content.

 

[CBrahs]

LOL, Thanks Klenger, I found a previous post with the link and downloaded it. Thanks!! I will have to play around with it to see where I want to go.

 

[JClaflin]

hey cbras im getting ready to install 4. 56 here in about 2 weeks i also have 37 on my 3500 dually i was told i would be happer since i do a far share of towing when i get them in i will let you guys know how they do for me