Grass r ratio if ya have 20 inch tires on

Asked by Pswalley May 24, 2018 at 05:14 PM about the 2002 Dodge RAM 1500 SLT Plus Quad Cab LB RWD

Question type: Car Customization

I got 2002 dodge ram 5.9 and rhe rear,end gear
ratio is 3.55 on it now but on the side of the door
the tire size says 17 and i got 20s on it i dont know
if this makes difference or not now in my owners
book it says with 20 inch tirea should be 3.92 rear
end so im asking what actuall should be gear ratio
on rear end with 20s on it

2 Answers

4,790

depends on how much low end torque you want with the taller tires. You can leave the 355 on there if you want, or increase to something 411 or even higher if you really want the off the line perf back. Just be prepared for the increased gas bills as well.

4,790

Of course, you could run the 20's with smaller tire diameter n have the same tire circumference to gear ratio.

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