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Old Mar 27, 2012 | 09:54 AM
  #46  
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But it could be......I guess.......
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Old Mar 27, 2012 | 10:16 AM
  #47  
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Originally Posted by Trev1006
No, It should be 355, 373, or 4.10. Possibly 307 if its from a car. Ive never seen 388. It is an exploder axle?
ya i believe its from a exploder
3 and a half turns of the driveline on 1 tire rotation i beleive is what i got last night
i really dont want to regear the front but if i have to i have to it will just be a longer wait the funds are kinda low right now lol
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Old Mar 27, 2012 | 10:20 AM
  #48  
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That is 3.55 sir. Do both shafts rotate forward when you spin the pinion?
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Old Mar 27, 2012 | 10:45 AM
  #49  
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Originally Posted by Trev1006
That is 3.55 sir. Do both shafts rotate forward when you spin the pinion?
yea bolth spin the same way
and my buddy looked up my vin# at the jeep dealer he works at and it says that the front gears are 307 so im gonna have to regear dammit lol o well gotta do it
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Old Mar 27, 2012 | 11:24 AM
  #50  
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he told me he would give me a fron axle out of an automatic with 373's would that work with the 355's if that is what it is?
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Old Mar 27, 2012 | 11:27 AM
  #51  
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No, the gears need to match.
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Old Mar 27, 2012 | 11:28 AM
  #52  
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Ive got three 3.55 fronts, but I think ur far away.....
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Old Mar 27, 2012 | 11:33 AM
  #53  
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Originally Posted by cherokeewheelin73
The tag on the 8.8 says 388 u think that's the gears in it?
It musta been a rusty 308...... that had to be a v8 explorer to have 3.08 gears. Just look for a 4x4 6cyl explorer at the junk yard. It should have 4.10 gears, if ur gonna swap, mys well go 4.10 at least. What size tires you gonna be running? I have 33's and like the 4.10's with the 4.0, but some guys go 4.56.
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Old Mar 27, 2012 | 11:44 AM
  #54  
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Originally Posted by Trev1006
It musta been a rusty 308...... that had to be a v8 explorer to have 3.08 gears. Just look for a 4x4 6cyl explorer at the junk yard. It should have 4.10 gears, if ur gonna swap, mys well go 4.10 at least. What size tires you gonna be running? I have 33's and like the 4.10's with the 4.0, but some guys go 4.56.
ya i never heard of 308 gears but he said its problaly because its a 5 speed and if the 8.8 is 355 then i know i need to match it up and thats a hell of a difference....he has a automatic zj with 373 gears that he said he would give to me i think it would be cheaper to find a axle to match but not sure this is the first time i have ever delt with axle swaps and trying to figure out gearing and tire size about 33 or 35 its not a daily driver i am just turning it into my wheeler
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Old Mar 27, 2012 | 06:19 PM
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Brandon, if three and a half turns of the yoke got you one full tire rotation, that means that axle has 3.55 gears PERIOD. Now, three and three quarters turns means you have 3.73. It is important that you know for sure what the gear ratio is as they must match front to rear. so, if you need to do the rotation check again to be sure, do it.

Now, as far as your Jeeps front axle goes. if you have the 4.0 inline six cylinder you either have 3.55 gears if your jeep is a factory auto tranny model or you have 3.07 gears if your Jeep is a factory 5-speed model again PERIOD. the only way your gears would be anything else is if you have the 2.5 four cylinder motor, in which case you would have 4.10 gears. You can do the rotation check on your Jeeps front axle to be sure about that, too.
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Old Mar 27, 2012 | 08:27 PM
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Originally Posted by BuckB91XJ
Brandon, if three and a half turns of the yoke got you one full tire rotation, that means that axle has 3.55 gears PERIOD. Now, three and three quarters turns means you have 3.73. It is important that you know for sure what the gear ratio is as they must match front to rear. so, if you need to do the rotation check again to be sure, do it.

Now, as far as your Jeeps front axle goes. if you have the 4.0 inline six cylinder you either have 3.55 gears if your jeep is a factory auto tranny model or you have 3.07 gears if your Jeep is a factory 5-speed model again PERIOD. the only way your gears would be anything else is if you have the 2.5 four cylinder motor, in which case you would have 4.10 gears. You can do the rotation check on your Jeeps front axle to be sure about that, too.
Noodles jeep is a five speed and he had 3.07's in his.
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Old Mar 27, 2012 | 10:24 PM
  #57  
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Alright I shoulda payed more visual attention on the 8.8 inside on the gears it has 373 stamped 3 times with all the other factory stamps do I started pulling the front axle to put the axle out of a grand 4.0 auto 373 gears I'm done for the night and hopefully get er all the way out tommorow
Attached Thumbnails rear end-forumrunner_20120327_202321.jpg   rear end-forumrunner_20120327_202345.jpg  
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Old Mar 27, 2012 | 11:12 PM
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Even though somebody told you that D30 out of a Grand has 3.73 gears I'd still do the rotation check just so I knew for my own peace of mind that my gears matched front to rear.
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Old Mar 27, 2012 | 11:21 PM
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Originally Posted by 1987XJ
Noodles jeep is a five speed and he had 3.07's in his.
Yep, and his Jeep is a 92. My Jeep is a 91 and came with an auto tranny and I originally had 3.55's. Brandon, the guy who started this thread, has a 96. The specs I wrote apply to the Chrysler type XJs. 1991-2001. Some older Renix type XJs could be had with 3.73's if that had certain trailering or offroad packages.
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Old Mar 28, 2012 | 12:01 AM
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Originally Posted by BuckB91XJ

Yep, and his Jeep is a 92. My Jeep is a 91 and came with an auto tranny and I originally had 3.55's. Brandon, the guy who started this thread, has a 96. The specs I wrote apply to the Chrysler type XJs. 1991-2001. Some older Renix type XJs could be had with 3.73's if that had certain trailering or offroad packages.
I had 3.54 gears
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