[gringo loco]

Is 3.21 gear ratio on an automatic enough for 33's ?

 

[travis29]

Yep works fine on my 2012 after i used the procal.

 

[Brun019822]

Yep works fine on my 2012 after i used the procal.

what did procal do for you? did you notice any improvement? I have 33's on now havent really noticed a difference

 

[travis29]

Better shifting, doesnt feel sluggish. Odo and mpg are more accurate.

 

[Brun019822]

I might have to give it a try thanks :thumb:

 

[travis29]

I also input my gear ratio, day time running lamps option

 

[firehawk]

3.21 on 2 door

:dance:hi, if you have a 2 door jk then the 3.21 is fine however if you have a 4 door then i would go with the 3.73. the auto is also ok, the 6 speed is a pain
in the city. 3 of my jeeps were stick and last 3 auto..have fun every day:wavey::wavey:

 

[gringo loco]

:dance:hi, if you have a 2 door jk then the 3.21 is fine however if you have a 4 door then i would go with the 3.73. the auto is also ok, the 6 speed is a pain
in the city. 3 of my jeeps were stick and last 3 auto..have fun every day:wavey::wavey:

I have a 4 door and limited funds, this is getting pricey I am scrounging just to get wheels and tires. Will 3.21 do harm or just be more sluggish. I wish I was rich I'd have a rubi with the pentastar or maybe a hemi

 

[gringo loco]

Yep works fine on my 2012 after i used the procal.

Does the procal do anything to factory warranty ?

 

[travis29]

Nope u can set it back to factory settings if u trade it in.

I wondered the same about 33s harming the rig, the only thing it harms is mpg's. Performance wise not sluggish after procal was used.

Once u get 35s and up thats when u need to worry about replacibg certain parts to prevent harming the jeep.