A good gear ratio for dd that is wheeled on the weekends?
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
Hey guys im starting to build my 93 to door and was woundering what gear ratio i should go with. Ill be running 33 12.50 r 15s. I drive about 120 miles a day on the interstae at 70mph when i drive it to work. I do wheel alot on the weekends and since i live in West virginia It consists of alot of steep climbs. I know I cant realy get the best of both worlds when it comes to trail riding and interstate driving but i would like to find a happy medium on the gearing.
CF Veteran
Joined: Jul 2013
Posts: 7,554
Likes: 17
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
I run the same tire and the 4.56's are great for a DD as they bring it back to the OEM gearing with the stock tire size and 3.55's. This is a great time to install lockers as the labor is the same as with a gear change. If you don't install locker in the D30 you will need a new carrier for it for those gears.
Don't forget to change the speedometer gear when you do the gears, so it reads correctly.
If by chance you do need a carrier I have a new one that I bought and never used that I would make you a deal on.
Don't forget to change the speedometer gear when you do the gears, so it reads correctly.
If by chance you do need a carrier I have a new one that I bought and never used that I would make you a deal on.
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
I run the same tire and the 4.56's are great for a DD as they bring it back to the OEM gearing with the stock tire size and 3.55's. This is a great time to install lockers as the labor is the same as with a gear change. If you don't install locker in the D30 you will need a new carrier for it for those gears.
Don't forget to change the speedometer gear when you do the gears, so it reads correctly.
If by chance you do need a carrier I have a new one that I bought and never used that I would make you a deal on.
Don't forget to change the speedometer gear when you do the gears, so it reads correctly.
If by chance you do need a carrier I have a new one that I bought and never used that I would make you a deal on.
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
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Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Jul 2012
Posts: 4,104
Likes: 2
From: San Antonio, TX
Year: 1996
Model: Cherokee
Engine: 4.0L
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Joined: Sep 2010
Posts: 34,088
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From: Lantana, Fl
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
27/33 x 3.55 = 2.90:1
27/33 x 4.10 = 3.35:1
27/33 x 4.56 = 3.73:1
4.56:1 is the best choice as your Xj will "think and act" like it's still turning 27" tires with 3.73:1 gearing (3.55:1 is stock gearing but some Xjs were offered with the Towing Package which had 3.73:1 gearing)
27/33 x 4.10 = 3.35:1
27/33 x 4.56 = 3.73:1
4.56:1 is the best choice as your Xj will "think and act" like it's still turning 27" tires with 3.73:1 gearing (3.55:1 is stock gearing but some Xjs were offered with the Towing Package which had 3.73:1 gearing)
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