Lockers.... Help
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Newbie
Joined: Feb 2016
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Model: Cherokee
Lockers.... Help
I have a 94 Cherokee sport . I believe I have the Chrysler 8.25 rear end .... I want to put a rear locker on it .... Which should I get ? For mud and street.... Is it something I can put in myself or do I need to go to a shop
Thanks -corey
Thanks -corey
CF Veteran
Joined: Dec 2011
Posts: 1,080
Likes: 8
From: IE (SoCal)
Year: 1994 SE
Model: Cherokee
Engine: 4.0
We don't know your mechanical your skill level, so we can't say if you can do it yourself. They type of locker is a major factor of shop vs DIY.
Take a minute and research, I'm sure research will answer many of your questions.
Take a minute and research, I'm sure research will answer many of your questions.
Last edited by jay_sco; Feb 21, 2016 at 10:46 AM.
CF Veteran
Joined: Jul 2013
Posts: 7,554
Likes: 17
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
Welcome to the forum!
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
CF Veteran
Joined: Feb 2010
Posts: 2,095
Likes: 3
From: Cove, OR
Year: 1993
Model: Cherokee
Engine: 4.0
Welcome to the forum!
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
Also the 2000- 2001 Dana 30s are low pinions. (And weaker)
This way you don't waste money buying an axle that you then have to change gear ratios and install a locker in anyway.
Last edited by Rock Toy; Feb 21, 2016 at 04:36 PM.
Thread Starter
Newbie
Joined: Feb 2016
Posts: 3
Likes: 0
Model: Cherokee
Welcome to the forum!
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
In your 94 model you have the smaller spline count axle it would be a good idea to upgrade to a 97-01 Cherokee 29 spline Chy 8.25 for strength.
Corey one issue you need to address is what size tire your going to run as it determines the gear ratio that is required for you. Stock gears don't work with large tires needed for mud and for the lockers a lot of them need to be ordered by the gears your running.
The type of locker depends a lot on your budget and the need for one in the front also not as much there a zip locker would be cheap and work. The rear is a different story if the budget were there selectable lockers would be the correct answer for you but $$$$.
Personally I run full case auto lockers, Detroit Lockers ft. and rear in mine. Some people don't know how to drive with an auto locker in the rear so use a lsd, but not so good for use in mud though. and do have to be rebuilt discs wear out.
CF Veteran
Joined: Jul 2013
Posts: 7,554
Likes: 17
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
You can also swap in 29 spline shafts and a full case locker when you do the gear change instead of buying a 97-99 axle.
Also the 2000- 2001 Dana 30s are low pinions. (And weaker)
This way you don't waste money buying an axle that you then have to change gear ratios and install a locker in anyway.
Also the 2000- 2001 Dana 30s are low pinions. (And weaker)
This way you don't waste money buying an axle that you then have to change gear ratios and install a locker in anyway.
I think I missed something about the LPD30 I never mentioned that as I don't think his has one in that year. Yes thanks for the correction on the 29 spline axles working with a full case locker in his current setup.
Thank you for the reply ! That's a big reply lol . Money isn't to bad off an issue . I mine as well and buy something that will last instead of going with bull.... I have 31s on it atm. Butt I'll be running 33 11.50s . Should I change my gears first before a locker ? If so what kind of gears ? I still need to use the interstate
The correct gear for a 33" tire is a 4.56 and with it brings things back to what they were with a stock size tire and 3.55 gear. So in that case your highway MPG's will increase mine did when I switched to them from 3.55's and a 33x12:50 tire by about 5+MPG.
Its best to install the gears/lockers at the same time due to the cost savings on labor no extra to do with a full case locker in the rear. That way you can keep your current differential and just buy 2 29 spline stock axles to go in it from a 97-01 Cherokee.
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Model: Cherokee
I think I missed something about the LPD30 I never mentioned that as I don't think his has one in that year. Yes thanks for the correction on the 29 spline axles working with a full case locker in his current setup.
The correct gear for a 33" tire is a 4.56 and with it brings things back to what they were with a stock size tire and 3.55 gear. So in that case your highway MPG's will increase mine did when I switched to them from 3.55's and a 33x12:50 tire by about 5+MPG.
Its best to install the gears/lockers at the same time due to the cost savings on labor no extra to do with a full case locker in the rear. That way you can keep your current differential and just buy 2 29 spline stock axles to go in it from a 97-01 Cherokee.
The correct gear for a 33" tire is a 4.56 and with it brings things back to what they were with a stock size tire and 3.55 gear. So in that case your highway MPG's will increase mine did when I switched to them from 3.55's and a 33x12:50 tire by about 5+MPG.
Its best to install the gears/lockers at the same time due to the cost savings on labor no extra to do with a full case locker in the rear. That way you can keep your current differential and just buy 2 29 spline stock axles to go in it from a 97-01 Cherokee.
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