Gear ratio and RPM

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Snake15eyes1998

Senior Member
Joined
Jun 7, 2020
Posts
195
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64
Location
USA
Ram Year
2006
Engine
5.7
http://www.grimmjeeper.com/gears.html

Hey guys I found this gear ratio rpm tool. Its really interesting, it allows you to pick your transmission, tire size, gear ratio( or new gear ratio) then tells you what RPMs you will be at. I hope I'm allowed to post this, not sure If I am. But with my current tires and gear ratio. This tool was dead on with my RPMs in 1st gear doing 50MPH. I thought this was extremely helpful when I was on the fence about regearing. Or even dropping tire size. Check it out.
 

Fishstickz

Senior Member
Joined
Jul 20, 2017
Posts
636
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357
Location
Oklahoma
Ram Year
'06, '16
Engine
3.7, 5.7 Hemi
Thats the one I use as well, I found it in a post somewhere else but its by far my favorite ratio calculator. It’s spot-on for my truck and basically anything I’ve thrown at it


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