Dodge Ram 2500 Gearing
- Thread starter 1993yj
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Tacoma
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- Location
- far enough away
I thought 3.55's were the shizzle for Cummins trucks and mileage. ? Hrmph.
DUDE! it's got a Hemi
Tacoma
Et incurventur ante non
- Location
- far enough away
OOPS I saw "Dodge 2500" and couldn't imagine anything but a Cummins in it.
anyway I concur with your calculations about equivalent gear ratios.
Right now, with that combo you're effectively pushing a numerically lower gear ratio, which is forcing your "Hemi" to work harder all around.
4.56's would very much help you.
Yeah, a diesel would be great, but funds didn't allow for it at purchase time. And Meat_ is correct, 245/75 R17's were stock. I figured about the same on gearing it at 4.56's to get me back to where I want to be. I could care less about the speedo being calibrated correctly, just wanted some towing power and mpg's back. Thought I would see if anyone else had tried this and what their results were before I started spending more money.
Tacoma
Et incurventur ante non
- Location
- far enough away
Well, if it's close, you're golden. My Blazer is off about 13mph at 65 on the speedo, according to the roadside radar displays.
It is actually worth it for me to get that corrected LOL hell of a lot cheaper than the first ticket I'm probably heading for.If the speedo is on then you're at stock final drive ratio
That makes sense. Hadn't ever looked at it that way.
Well, if it's close, you're golden. My Blazer is off about 13mph at 65 on the speedo, according to the roadside radar displays.
If you know how far off your speedo is then just adjust your speed accordingly and avoid the ticket. Thats what I try to do at the moment. I figure I am off by about 10-12 at 65mph. Hopefully not for too much longer though.