What axel is this?
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 905
Likes: 8
From: New Hampshire
Year: 1998
Model: Cherokee
Engine: 4.0L I6
well there are different types of lockers, but yes the overall concept is that it make BOTH wheels turn at the same speed
with an open diff, when you make a turn, the wheel on the outside of the radius of the turn will spin faster than the wheel on the inside (i.e. when you turn right, your left rear spins faster and vice-versa). The problem with the open diff is that its natural tendancy is to allow the wheel with the least amount of resistance to spin faster, allowing you to turn your vehicle with less effort, less wear on the axle parts, and less wear on your tires... LIMITED SLIP allows this same action but has clutches in it that detects wheels spin and will engage the clutches to transfer some of the power to the wheel that actually has traction... works better than open diff, but still not as great as a locked differential... basically, the locked differential provides positive traction to BOTH rear wheels no matter which one is free.
hope this helps
with an open diff, when you make a turn, the wheel on the outside of the radius of the turn will spin faster than the wheel on the inside (i.e. when you turn right, your left rear spins faster and vice-versa). The problem with the open diff is that its natural tendancy is to allow the wheel with the least amount of resistance to spin faster, allowing you to turn your vehicle with less effort, less wear on the axle parts, and less wear on your tires... LIMITED SLIP allows this same action but has clutches in it that detects wheels spin and will engage the clutches to transfer some of the power to the wheel that actually has traction... works better than open diff, but still not as great as a locked differential... basically, the locked differential provides positive traction to BOTH rear wheels no matter which one is free.
hope this helps
For example... If one wheel is up in the air, with an open differential, it's going to spin. Whereas the wheel that actually needs and has traction, wont be doing anything...?
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
So basically what you're saying is; An open diff will turn the wheel will the least amount of traction, faster than the wheel which has traction. That a locker will provide equal amount of power to both wheels, no matter which one is gripping more tread.
For example... If one wheel is up in the air, with an open differential, it's going to spin. Whereas the wheel that actually needs and has traction, wont be doing anything...?
For example... If one wheel is up in the air, with an open differential, it's going to spin. Whereas the wheel that actually needs and has traction, wont be doing anything...?
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 905
Likes: 8
From: New Hampshire
Year: 1998
Model: Cherokee
Engine: 4.0L I6
I thought also about how much of this power I would lose going with bigger tires and a lift. Specifically with a D35 axel. It almost seems going bigger, isn't necessarily better when overall power is concerned. Perhaps and XJ with smaller tires, smaller axels, would be more efficient in certain offroad environments, if not more efficient in several that didn't need the ground clearance.
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
well, first of all, if your going to go with bigger tires, your going to want to re-gear your front and rearend... this will accomodate for the increase in tire size. Search the forums in the technical how-to section for a chart that shows what gears to get for what tire size....
second, the cherokee is actually fairly light weight for an offroad vehicle... it only weighs about 3400 lbs.... the motor in your xj has 190 hp and 225 lbs/ft of torque... so really as far as power-to-weight ratio, the cherokee is actually pretty great - a friend of mine has a dodge durango with the 4.7l v8 in it and can't beat me off the line to save her life...
a 4.7l stroker would obviously up the anti on horsepower and torque... just make sure you check that write up in the technical writeup/how-to section as well... it is a wealth of knowledge and will tell you all of the factors that you need to consider when performing a stroker mod
biggest thing to remember is, do the least expensive thing first... lift your jeep, throw the 31's under it and if you're not happy with the power, re-gear it... if you still can't live with the power, THEN you can start throwing money at the motor... just make sure you know what you're in for... which for a stroker is about 2500 bucks for starters, I believe.
second, the cherokee is actually fairly light weight for an offroad vehicle... it only weighs about 3400 lbs.... the motor in your xj has 190 hp and 225 lbs/ft of torque... so really as far as power-to-weight ratio, the cherokee is actually pretty great - a friend of mine has a dodge durango with the 4.7l v8 in it and can't beat me off the line to save her life...
a 4.7l stroker would obviously up the anti on horsepower and torque... just make sure you check that write up in the technical writeup/how-to section as well... it is a wealth of knowledge and will tell you all of the factors that you need to consider when performing a stroker mod
biggest thing to remember is, do the least expensive thing first... lift your jeep, throw the 31's under it and if you're not happy with the power, re-gear it... if you still can't live with the power, THEN you can start throwing money at the motor... just make sure you know what you're in for... which for a stroker is about 2500 bucks for starters, I believe.
Thread Starter
Senior Member
Joined: Feb 2012
Posts: 905
Likes: 8
From: New Hampshire
Year: 1998
Model: Cherokee
Engine: 4.0L I6
well, first of all, if your going to go with bigger tires, your going to want to re-gear your front and rearend... this will accomodate for the increase in tire size. Search the forums in the technical how-to section for a chart that shows what gears to get for what tire size....
second, the cherokee is actually fairly light weight for an offroad vehicle... it only weighs about 3400 lbs.... the motor in your xj has 190 hp and 225 lbs/ft of torque... so really as far as power-to-weight ratio, the cherokee is actually pretty great - a friend of mine has a dodge durango with the 4.7l v8 in it and can't beat me off the line to save her life...
a 4.7l stroker would obviously up the anti on horsepower and torque... just make sure you check that write up in the technical writeup/how-to section as well... it is a wealth of knowledge and will tell you all of the factors that you need to consider when performing a stroker mod
biggest thing to remember is, do the least expensive thing first... lift your jeep, throw the 31's under it and if you're not happy with the power, re-gear it... if you still can't live with the power, THEN you can start throwing money at the motor... just make sure you know what you're in for... which for a stroker is about 2500 bucks for starters, I believe.
second, the cherokee is actually fairly light weight for an offroad vehicle... it only weighs about 3400 lbs.... the motor in your xj has 190 hp and 225 lbs/ft of torque... so really as far as power-to-weight ratio, the cherokee is actually pretty great - a friend of mine has a dodge durango with the 4.7l v8 in it and can't beat me off the line to save her life...
a 4.7l stroker would obviously up the anti on horsepower and torque... just make sure you check that write up in the technical writeup/how-to section as well... it is a wealth of knowledge and will tell you all of the factors that you need to consider when performing a stroker mod
biggest thing to remember is, do the least expensive thing first... lift your jeep, throw the 31's under it and if you're not happy with the power, re-gear it... if you still can't live with the power, THEN you can start throwing money at the motor... just make sure you know what you're in for... which for a stroker is about 2500 bucks for starters, I believe.
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
yeah, I noticed that too... everything I'm hearing about re-gearing though is that you're better off leaving that to someone who knows what they're doing... you can really mess up your rearend if you don't get the tolerances right.
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
Along with Drivetrain... I've just discovered what a stroker is, and I think I want one.
Exos Jeep 4.7L stroker first start - YouTube
Exos Jeep 4.7L stroker first start - YouTube
