Gear ratio

[Livemic]

Hi I’m new here and new to dodge 4x4. I have a 2005 ram 1500 quad cab 1500 with 5.7 and 35inch tires I’m rebuilding rear diff because of bad bearings. Took cover off and found that it has 4.27 gear ratio I do tow from time to time is this a good set up thanks

 

[CheechDogg.0n37s]

This is a first lol ... Never heard of 4.27s on any ram 1500 ...

 

[Papa Red]

Welcome to the forum.

Red

 

[Daw14]

.

 

[Dan Topp]

Welcome to the forum from Jefferson

 

[Harley Harrold]

 

[Joe w.]

Welcome

 

[david brunk]

Welcome
That 4.27 ratio if its correct is a mpg killer unless you pull heavy all the time (overkill)
If you dont pull often and can change your ratio. a little towing 3.23, more towing 3.55, more 3.92
Good luck

 

[BlackGold6.4]

The 4.27 if those are right are correct for towing with 35 inch tires.. never heard of 4.27.. but ratio of the stock tires and gears were more than likely matched to the 35s.. 3.92 x 35 ÷ 32= 4.28
If you had 3.92's before..

 

[GTyankee]

4.27 differential ratio is used a lot on Jeeps

https://www.morris4x4center.com/jeep-drivetrain/jeep-differentials/4_27.htm