I currently have 3. 54 gears and 35" tires. I can't wait to change to 4. 10 or 4. 30 (37s in the future). I would keep your 4. 10s, or swap axles w/ me![]()
Are you sure you have 4. 56 gears? That ratio was not offered in the Dana rear ends used in Gen II trucks w/Cummins engines. I think it was offered in gas powered 4x4 Rams.
I averege 16 mpg city/highway, 17 highway, 20 on a slow country road doing 45-50 mph. I lug the engine a lot around town. I try to keep the OD off until I get on the highway. I am not very happy with my current gearing. I think I would get better milage with a lower gear (higher numerically).
Yes, I have a detroit locker in the rear and the gears were changed. I run 2265 rpm at 75mph which by calculation shows me that is a 4. 56
I have the 4. 56 gears and I am turning 2265rpm at 75 and can't use OD under 60mph without it getting hot. I have been told 17-1900rpm is the best range for mileage. A 3. 73 would be 1874rpm in 3rd at 55mph and 1764rpm in OD at 75mph. If you are looking for mileage I would stay away from the 4. 56 am only getting 12mpg highway
Yes, I have a detroit locker in the rear and the gears were changed. I run 2265 rpm at 75mph which by calculation shows me that is a 4. 56
I have the 4. 56 gears and I am turning 2265rpm at 75 and can't use OD under 60mph without it getting hot. I have been told 17-1900rpm is the best range for mileage. A 3. 73 would be 1874rpm in 3rd at 55mph and 1764rpm in OD at 75mph. If you are looking for mileage I would stay away from the 4. 56 am only getting 12mpg highway
I can drive mine like miss daisy or like don garlits and it still gets the same