ring and pinion

[joseph carter]

hey hows it goin just got a quick question just bought a 2013 quad cab 4.7 1500 2wd the dealer put 33 1250 20's on it is the factory gears good enough or should I change and if so to what and where can I find a ring and pinion set thanks.

 

[MADDOG]

Depends on what gear you have.

Get a build sheet here:

https://www.dodge.com/webselfservice/dodge/

Enter your VIN on the "Equipment Listing" portion of the website. A .pdf file of your build sheet will appear.

Then you can tell what your gears are.

How does it drive with that size wheel & tire on it?

 

[joseph carter]

it says 355 gears thanks for showing me that and it does fine in town if you give it some gas if you take off kinda slow when it shifts to 2nd it seems to die down a lot not like hesitant or cutting out but the rpms drop way down and on the interstate it does good till a hill I can run 75 and it will drop to 67 if you don't dang near floor it then its fine once flattens back out

 

[TRCM]

You should be ok.....standard stock gears are 3.55, and a 20" stock titre is ~ 33" tall........so you are basically @ stock.

 

[joseph carter]

Ok so maybe the 4.7 just aint enough motor then cause she drops way down shiftin to 2nd and maybe 2nd is just that way and hills kill her i know shes suppose to have 275 70 17 and them 33 1250 20 are alot more tire

 

[TRCM]

could be the motor is weak......

A 275/70x17 tires is 32.2" tall

a 33/12.50x20 tires is generally 33" tall (give or take 1/2")


Not enough height difference to matter.......but the tire is ~ 2" wider, so it is heavier......

Again, the gears you have should work, factory uses the same 3.55 gearing on the 17"-20" tires.......but if yer gonna change them go 4.10 or 3.92.

I have a 2012...you likely need to disconnect the battery for awhile, then drive it like you want and let the system re-learn everything with the newer tires.

 

[joseph carter]

Ok i'll try that i got a kn air filter and a power and torque chip coming to abd putting a glasspack on so hopeful help it i live on dirt roads and it will dig ditches no problem just hills it dont like

 

[RoadRamblerNJ]

Pedal Commander

 

[joseph carter]

i heard of those there suppose to be good but out of my price range

 

[RoadRamblerNJ]

i heard of those there suppose to be good but out of my price range

Son, if the PC is out of your price range, you are gonna sh@t when you see how much a ring and pinion swap is.