Northern Utah BS thread
CF Veteran
Joined: Jan 2009
Posts: 1,703
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From: Utardiland
Year: whats left of a 91
Model: Cherokee
Engine: one that makes noise
Like i said, i still wish it was a bit lower. But it had plenty of power. It just drove really... jerky. It wasnt quite enough power to idle up stuff, but if i even touch the accelerator, it lurched forward a real hard. Was kinda weird, but i think itll just taking some getting used to. Ive never driven anything that low geared. Overall, it was pretty good.
Senior Member
Joined: Jan 2010
Posts: 855
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From: Taylorsville, UT
Year: 1999
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Dec 2010
Posts: 2,366
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From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Yeah, Jason. I wanna get an Atlas. But it wont be for a while haha.
And the shackles are just pieces of 3/8s steel strips. They are merely there to keep things together til i can get some better ones.
And yes, i need to learn to drive it a little better haha
And the shackles are just pieces of 3/8s steel strips. They are merely there to keep things together til i can get some better ones.
And yes, i need to learn to drive it a little better haha
CF Veteran
Joined: Jan 2009
Posts: 1,703
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From: Utardiland
Year: whats left of a 91
Model: Cherokee
Engine: one that makes noise
but i think my doubler will give me enough options to be happy.
Senior Member
Joined: Nov 2009
Posts: 842
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From: SLC Utah
Year: 1998
Model: Cherokee
Engine: I6
Senior Member
Joined: Jan 2010
Posts: 855
Likes: 0
From: Taylorsville, UT
Year: 1999
Model: Cherokee
Engine: 4.0L
Are you looking for solutions on or off road? On the road, MPG kind of evens out throughout the range of gears. 3.55 lug, 4.88's are at high RPM. Either way, it seems MPG pretty much stays the same from the polls I have looked through.
Off road, a 4:1 in the t case will make a bigger difference than any diff gear swap you do. I run most trails with 3.8 in the t-case with the 3.55 diffs and it is a great trail combo.
As far as a diff change, I have never read anyone saying they wish they had done 4.56 when they did 4.88, but you see it the other way around all the time. One thing that worries a lot of people is how small the pinion gears get on the D30 with such low gears.
CF Veteran
Joined: Dec 2010
Posts: 2,366
Likes: 0
From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Originally Posted by mike20
you can always get the thumb throttle that mounts in the shifter. but almost cheating
CF Veteran
Joined: Jan 2009
Posts: 1,703
Likes: 0
From: Utardiland
Year: whats left of a 91
Model: Cherokee
Engine: one that makes noise
all it is, an old style bike gear selector that you mount on your shift lever and run the cable to your throttle so you can pick an RPM needed to get going on steep hills. if your not good at the "chevy side step" driving style then this isn't a bad option.
Last edited by jmaxj; Feb 26, 2012 at 07:42 PM.
CF Veteran
Joined: Sep 2010
Posts: 1,930
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From: herriman
Year: 1991
Model: Cherokee
Engine: 4.0
I am on 3.55 and 35s. Boom! 
Are you looking for solutions on or off road? On the road, MPG kind of evens out throughout the range of gears. 3.55 lug, 4.88's are at high RPM. Either way, it seems MPG pretty much stays the same from the polls I have looked through.
Off road, a 4:1 in the t case will make a bigger difference than any diff gear swap you do. I run most trails with 3.8 in the t-case with the 3.55 diffs and it is a great trail combo.
As far as a diff change, I have never read anyone saying they wish they had done 4.56 when they did 4.88, but you see it the other way around all the time. One thing that worries a lot of people is how small the pinion gears get on the D30 with such low gears.
Are you looking for solutions on or off road? On the road, MPG kind of evens out throughout the range of gears. 3.55 lug, 4.88's are at high RPM. Either way, it seems MPG pretty much stays the same from the polls I have looked through.
Off road, a 4:1 in the t case will make a bigger difference than any diff gear swap you do. I run most trails with 3.8 in the t-case with the 3.55 diffs and it is a great trail combo.
As far as a diff change, I have never read anyone saying they wish they had done 4.56 when they did 4.88, but you see it the other way around all the time. One thing that worries a lot of people is how small the pinion gears get on the D30 with such low gears.
CF Veteran
Joined: Dec 2010
Posts: 2,366
Likes: 0
From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Originally Posted by jmaxj
all it is, an old style bike gear selector that you mount on your shift lever and run the cable to your throttle so you can pick an RPM needed to get going on steep hills. if your not good at the "chevy side step" driving style then this isn't a bad option.



It will keep idling in pretty much any circumstances.





