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help with cj diff

help with cj diff

fredcj

Jeeper
Posts
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Location
hawkesbury ontario canada
I just buy a new 1979 jeep whit a 360 amc and i brock a rear axel. . I buy an other jeep but realy dont know what year it is and dont have any serial number.. how could i can t identificat the rear diff both dont have anny tag and number on it .. y trie take out only the rear axel and instalt in mine but its to long both diff look the sa me any idée??
 
If I understand what your asking and what you have, I'm guessing maybe you own a CJ with narrow track axles. You purchased the 2nd CJ with wide track axles.???

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Yes is a cj and i dont know but that make sens the diff whit the broken axel have smaller axel. . But if i take the pinion gear and the the cage wit the spider gear and install that in the wide track if its gone a fite
 
The '79 should have an AMC Model 20 rear end. It has a very round cover like this:
_665477.jpg

As long as both axles are like this you can swap out the differential between the 2. If one is wide track that won't matter.
Here's more info on the axles: http://www.jeep-cj.com/forums/f105/cj-axles-12186/
 
Becauze Bolt look the same but axel of the one that i dont know the year is more longer so i cant use only the axel i have to use all the diff but have poor gear i what to keep m'y gear if that possible ..
 
I take it your native or first language is French. Your doing better than I would if it is.
 
I just buy a new 1979 jeep whit a 360 amc and i brock a rear axel. . I buy an other jeep but realy dont know what year it is and dont have any serial number.. how could i can t identificat the rear diff both dont have anny tag and number on it .. y trie take out only the rear axel and instalt in mine but its to long both diff look the sa me any idée??
So yes you can just use the gears as long as they are the same ratio. They will fit even if they aren't but if they don't match the front you will not be able to use the 4wheel drive.
 
If you have match set of axles I would swap out the hole axle not just the gears. I prefer the widetrac over the narrowtrac it makes it handle better down the road. IMO
 
I take it your native or first language is French. Your doing better than I would if it is.
Lol yah he's not illiterate he's from hawksbury lol
 

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