Axles
Senior User
Joined: Aug 2003
Posts: 291
Likes: 0
Ok try this.
3.55 ratio = less engine rpm for a given speed, beter fuel millage. Also less power.
3.73 ratio = more engine rpm for a given speed, less fuel millage.Also more power.
4.10 ratio = you don't want it unless you plan on pulling a 747 aircraft down the interstate.
Hope that clears it up for you.
Mike
3.55 ratio = less engine rpm for a given speed, beter fuel millage. Also less power.
3.73 ratio = more engine rpm for a given speed, less fuel millage.Also more power.
4.10 ratio = you don't want it unless you plan on pulling a 747 aircraft down the interstate.
Hope that clears it up for you.
Mike
Senior User
Joined: Nov 2003
Posts: 147
Likes: 0
Re: Axles
Originally posted by Mick68
Can anyone please explain to me the difference in axles. Advantages of one over the other, ie 3.55 3.73 4.10.
Can anyone please explain to me the difference in axles. Advantages of one over the other, ie 3.55 3.73 4.10.
Freshman User
Joined: Aug 2003
Posts: 39
Likes: 0
If you 'build' your truck online and order the 18" rims, you get automatically switched from 3.55 to 3.73.
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Junior User
Joined: Nov 2003
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rear ends
The 1200$ heavy duty payload package jumps you to the new motor and 4:10 rearend.. I"ll let you know how that works out later this week. Picking up new truck after lunch 2-25-04
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Joe Kucinski
Senior User
Joined: Feb 2004
Posts: 185
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From: Vancouver, WA
I'm telling you, Go 4.10. The rpm increase is minimal (about 2100 at 70 mph). Fuel mileage is not the greatest, but I can still accelerate carrying a heavy payload going up steep hills. Don't cut yourself short.
