gears
CF Veteran
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
if you have a 5 speed, i would go with 4.10. but if you plan on ever going to 35's or want the more pulling power on and especially offroad, then the 4.56 is the better choice. 4.10 for fuel economy, but 4.56 for all out power, acceleration, offroad ability, and ease of upgrading to 35's if you want
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
i just put 411 in mine and im running 38s i would try some thing in the 390 aera 456 would be to much you would be real high in the rpms on highway
CF Veteran
Joined: Apr 2009
Posts: 1,601
Likes: 1
From: Kalamazoo, MI
Year: 2000
Model: Cherokee
Engine: 4.0L with throttle body spacer and cold air intake, bored throttle body, #784 injector upgrade
If you are running a manual with those tires and that lift kit then 4.10's should be good. If you have an auto then 4.56's are what you should look at. I am running a 3.5 with 31's on a manual and have plenty of power with 3.73's. If I was running a auto then I would have gone with higher gears.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
mines 5 speed ifound a 86 wtih a 4banger at the u pull it yard 2 weeks ago gears were like brand new pulled the carriers pinions and shims all for 100 dollars labor was cheap to pu them in ive been a grease monkey all my life i saved like 400 bucks and all oem parts
Last edited by freegdr; Oct 13, 2010 at 07:54 PM.
CF Veteran
Joined: Feb 2010
Posts: 2,095
Likes: 3
From: Cove, OR
Year: 1993
Model: Cherokee
Engine: 4.0
If you are running a manual with those tires and that lift kit then 4.10's should be good. If you have an auto then 4.56's are what you should look at. I am running a 3.5 with 31's on a manual and have plenty of power with 3.73's. If I was running a auto then I would have gone with higher gears.
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CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
CF Veteran
Joined: Feb 2010
Posts: 2,095
Likes: 3
From: Cove, OR
Year: 1993
Model: Cherokee
Engine: 4.0
He is going to be running a 6.5 inch lift with 33 or 35 inch tires. What makes you think he is looking for mileage? That is one of the strangest statements I've read on here, and why would you think that the auto would get better mileage running 4.56s and not the manual. Sorry, it makes no sense.
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Seasoned Member
Joined: Apr 2010
Posts: 390
Likes: 0
From: oak harbor, wa
Year: 1992
Model: Cherokee
Engine: 4.0 liter high output
yea i was wondering what gears to get cause im picking up a ford 8.8 out of a 98 explore from the junk yard for $175. i think it has 4.10 gears
CF Veteran
Joined: Feb 2010
Posts: 2,095
Likes: 3
From: Cove, OR
Year: 1993
Model: Cherokee
Engine: 4.0
If it already has 4.10s try them first, just disconnect the front drive shaft after you install the 8.8, and see how it works with the lift and the 33 or 35 inch tires. If it works good change the front ring and pinion to match hook up the drive shaft and you are good to go, if not change both diffs to 4.56 install the shafts and you are good to go. That way YOU will know exactly what to is going to be like on your Jeep. Good Luck
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