gear ratio change.
#5
CF Veteran
Join Date: Mar 2010
Location: Jacksonville, FL
Posts: 6,685
Likes: 0
Received 5 Likes
on
5 Posts
Year: 92
Model: Cherokee
Engine: 4.0
Originally Posted by Bob98Classic
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.
When towing, more RPMs is an advantage, less stress on your engine, & trans.
Last edited by N20jeep; 01-06-2013 at 09:02 AM.
#6
Originally Posted by N20jeep
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.
#7
CF Veteran
Join Date: Mar 2010
Location: Jacksonville, FL
Posts: 6,685
Likes: 0
Received 5 Likes
on
5 Posts
Year: 92
Model: Cherokee
Engine: 4.0
Originally Posted by 97xjCrow
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
Trending Topics
#9
Seasoned Member
Join Date: Sep 2012
Location: charlotte
Posts: 461
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.6L stroker
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
#11
Originally Posted by N20jeep
Light wheeling, the d35 and 33's should be alright
#12
Senior Member
Join Date: Nov 2012
Location: Tx
Posts: 999
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: I-6
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.
#13
CF Veteran
Join Date: Jun 2009
Location: Michigan
Posts: 2,127
Received 287 Likes
on
237 Posts
Year: 1987 MJ, 1998 XJ, 1973 J2000, 89 waggy
Model: Comanche (MJ)
Engine: 4.0L H.O
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)