4:10 or 3:73 ?
Possible upgrading to Ram dually. I'm pulling 12,500# gvw with SRW and 3.42 rear end. Usually lock 6th gear out. Plan is to move up to new 15,000# gvw 5th. Not sure if I want to get 4.10 or 3:73. Wh...
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4x4ord wrote:Wild Card wrote:
Yall can throw all the numbers you want out. I can yank my 16k# hauler up a 10 mile 6% grade at 65/70 miles an hour like it's nothing with my 4.10s. 1/2 to 1 mile to the gallon is pointless in the equation. I will smoke ya at the stop light and at the top of the hill. Bragging rights. ..bragging rights
That is the point.... your Cummins can tow your 16k hauler up a 6% grade at 70 mph which means, you don't have the best gear ratio for your application. It obviously works but just not as good as 3.42 gears for such a light load. 4.10 gears are better suited for a heavier trailer and/or on steeper grades. If you're foot is to the floor and your doing 70 mph with 4.10 gears up that hill then your in 5th gear and running at 2335 engine rpm. With 3.42 gears you'd be in 4th gear running at 2530 rpm and accelerating.
Is my 1.0 to 1 direct drive 4th gear more efficient than his .77 overdrive 5th gear??? Chris
