Has anyone changed out their stock gears?
What ratio should i go with? I have 3.55s right now. What would i get a noticeable difference with?

 

It depends on what type driving you plan on doing, like off road more,

or highway more. I like the 3..73 gears....

 

Are there any disadvantages running lower gears highway driving?

 

With lower gears on the highway, your RPMs go up, use a little more fuel.

When towing, more RPMs is an advantage, less stress on your engine, & trans.

 

Higher rpms don't always mean more fuel used. Cruising at higher rpms after lower gearing can put you in a better position in the powerband at highway speeds, requiring less throttle input to maintain speed. And less throttle input will translate to shorter injector pulsewidth... so better mpg.

 

Thats what i thought. Lol what should i upgrade to? Possibly going to be running 32s or 33s gonna be a daily driver but still want some decent pulling power off of the beaten path

 

Aw4? If so then id say 4.56

 

Yeah aw4 np231. 4.56 in the dana 35?

 

The turdy five isnt worth re gearing. 33s on a d35 is just whack. 3.55 is fine for stock. Really only need to regear when running bigger tires. Just lookup jeep cherokee gear chart for specific guidelines for tires size

 

Light wheeling, the d35 and 33's should be alright

 

Yeah i had 32s on my 97 and never had a problem, pulled em pretty good im just wondering if i regeared to 3.73s how would the axles hold up on the stock axles?

 

3.73s are not worth it time and money.I recently bought an 8.8 with the gear I wanted (4.10s for my future swap to 33s ) I will be swapping it in soon. I rebuilt the 35 in my jeep last year and it was ok but its leaking at the tubes and diff. I have an issue with pass. side axle seal, 2 seals in 1600 miles is enough. Getting a swap kit from Seriuosoffroad and its fixing to get 8.8 under it.

 

you'd be alright,

but going from 3.55's to 3.73's for a 33" tire is only a little gain for the $$ your going to pay for gears and install kits.

you're prolly looking at spending around $600 at the very least to do it correctly. (front and rear axles)

if the rear axle being too weak for what your doing is what your worried about then i would just save yourself the money from the gear swap and find a used Chrysler 8.25 from another XJ (only $100 ish depending on where you live and how popular they are)

 

How do i even know if i have the 35 or 8.25?

 

Seriously? Google d35 or 8.25.



The 8.25 has a flat bottom. 35 is oval all around