Gearing question
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Informative video!! What's your gas mileage like?
Making the jump from 31's to 33's in about a month. It's my dd and run 80 miles a day for work mostly hwy and hit the trails a few times a month. I live in CA and gas sucks!! Right now I get 15-16 mpg with an AW4 and 3.55 on 31's.
Sorry to hijack!!
Making the jump from 31's to 33's in about a month. It's my dd and run 80 miles a day for work mostly hwy and hit the trails a few times a month. I live in CA and gas sucks!! Right now I get 15-16 mpg with an AW4 and 3.55 on 31's.
Sorry to hijack!!
. Its my DD, I haven't checked for sure what Im getting a gal. But its good for me and my running around.
CF ADMIN
Joined: Sep 2010
Posts: 34,087
Likes: 256
From: Lantana, Fl
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
Good video Duma. Take note that the GC transmissions (ZJ: 42RE & WJ: 45RFE/545RFR) had different gear ratios compared to the AW30-40 (AW4) found in the Xj Cherokee. So how those vehicles act with same axle gear ratios is a little different. Even the OD ratios are different.
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Good video Duma. Take note that the GC transmissions (ZJ: 42RE & WJ: 45RFE/545RFR) had different gear ratios compared to the AW30-40 (AW4) found in the Xj Cherokee. So how those vehicles act with same axle gear ratios is a little different. Even the OD ratios are different.
. I put a bubble popup in the vid that says (This Cherokee is a 2000 XJ with AW-4 Np242 TC) so ppl know what jeep is in the vid
Last edited by Dumajones; Oct 27, 2014 at 12:01 PM.
CF Veteran
Joined: Jul 2013
Posts: 7,554
Likes: 17
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
Informative video!! What's your gas mileage like?
Making the jump from 31's to 33's in about a month. It's my dd and run 80 miles a day for work mostly hwy and hit the trails a few times a month. I live in CA and gas sucks!! Right now I get 15-16 mpg with an AW4 and 3.55 on 31's.
Sorry to hijack!!
Making the jump from 31's to 33's in about a month. It's my dd and run 80 miles a day for work mostly hwy and hit the trails a few times a month. I live in CA and gas sucks!! Right now I get 15-16 mpg with an AW4 and 3.55 on 31's.
Sorry to hijack!!
Going from a 3.55 gear to the 4.56's with 33x12:50x15's I gained 5 mpg and a lot better performance all around on and off road.
Had 31's on for a while and didn't lose that many mpg and only a slight increase in RPM's over the 33's.
CF Veteran
Joined: Feb 2013
Posts: 1,802
Likes: 2
From: Justin, TEXAS
Year: 1988
Model: Cherokee
Engine: 4.0
That's interesting, I gained alot of city mpg and performance with my 4.88s and 35s. They muesure 33&1/2 though(km2s) and I really don't like driving on the highway, I'm pretty positive I get a small amount better mpg in the city because of how high the rpms are on the interstate
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