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Old 01-22-2012, 03:51 AM   #1
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Regearing my yj

Ok im not new to jeeps have 4 but when it comes to gears I have no idea so right now my jeep is stripped down to just the frame and motor axles body are off im puting a ford 8.8 in the rear and keeping the dana 30 I wanna run a detroit true trac locker in both axles cause this is my daily driver the jeep is a 4 banger should I run 488 or 456 or ??? I want to go down the free way a little nicer im running 31s want 33s and another thing is locking and re gearing something I can do in my driveway or take it to a shop? Help want my baby on the road again

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Old 01-22-2012, 07:26 AM   #2
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I believe 4.88 would be best if you plan on running 33s, next time do a search to answer your question. This has been asked many times.

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Old 01-22-2012, 08:00 AM   #3
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If plans are for 33" tires the recommended gear with a manual is 4.88. With a auto I believe 4.56 due to not having as high a od ratio.
If it is tore down that far a 6 cyl swap may not be a bad idea.
There are several threads to search pros and cons to the 2 ratios.

Installing gears is highly technical. There are people that do them in the garage but if you don't have experience with them or similar you will struggle. Based on the average jeep owner skill and comfort level I say a shop needs to install them.
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Old 01-22-2012, 08:24 AM   #4
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I went with 4.88's and haven't looked back. You'll need them with 33's.
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Old 01-22-2012, 02:01 PM   #5
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I not try to be a Smart Azz but, if you have to ask about how to do a gear change, Take It To The Shop! Please! There are shops that all they do is gears.
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Old 01-22-2012, 03:19 PM   #6
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Doing gears is pretty easy if you have the right tool. I did a lot of research before I dove in to going my own gears. I bought a clam shell bearing puller from Yukon gears $400 and a 16 ton shop press. I've done the gears in both my YJ and XJ, also did my friends XJ with no issues, but it take a good deal if skill to get the gears to mesh up right. And if you get it wrong you just blew up your whole end, better call a tow truck.
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Old 01-22-2012, 03:36 PM   #7
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Yeah I was looking for re gear info but didn't find much then again I'm using my phone and as far as doing it myself I don't know if I wanna risk it but 4wheel parts prob charge a arm and a leg im $1400 into it with new gears and the lockers but 488 now some people say its easy some say its hard is it worth the try or not ?
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Old 01-22-2012, 04:22 PM   #8
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Yea I was in deep too $1600 lockers $400 gears $180 front bearing, $650 front axle shafts. I called around $1200 labor was the cheapest, I also bought a book I belive from Yukon about gear. It had a lot of usefully info. Marking paint the ring to see how the pinion is meshing up. The book shows you pictures I'm what its suppose to look like.
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Old 01-22-2012, 04:31 PM   #9
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Thanks yeah that is my prob I'm in it 1300 or so and now another 1000 and up just empty every pocket lol...
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Old 01-22-2012, 06:04 PM   #10
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I'm in to my.whole jeep for 15k not including $1700 I paid for it. And all the work was done by me not a shop. Not a cheap hobby ill tell you that.
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Old 01-22-2012, 06:29 PM   #11
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O I know iv bought sold lost my ass on cjs had 6 at one time sold them all cut my losses now I have a jk 3 yjs and the wifes 4 runner my yj im in it about 8000 after re gear and locks 9500 lol new mickeys brought the price up and jks quick disconnects $500 for install...
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Old 01-23-2012, 05:15 AM   #12
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I definitely wouldn't try to do gears at home. The time you'll put into it and the frustration you'll have getting everything lined up isn't worth the few hundred dollars a competent gear shop will change you do them in a few hours.
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Old 01-23-2012, 05:27 AM   #13
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Quote:
Originally Posted by thecheezman View Post
I believe 4.88 would be best if you plan on running 33s, next time do a search to answer your question. This has been asked many times.
We don't tell folks to go search around here. even if the question has been asked a few times.

Quote:
Originally Posted by Nubby55 View Post
I not try to be a Smart Azz but, if you have to ask about how to do a gear change, Take It To The Shop! Please! There are shops that all they do is gears.
If someone does not know if the install is easy or complex how would they know if they don't ask? For example would you have said the same thing if they asked, how to do an oil change?
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Old 01-23-2012, 09:49 PM   #14
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Thanks
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Old 02-23-2012, 04:17 PM   #15
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thats why I like this forum you guys are pretty cool about things
I have been on some hot rod forums and man if you dont know already your a dumbass in there eyes
I think the best thing I ever did was stop hotrodding and got a jeep and 4x4 chevy
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Old 02-23-2012, 04:19 PM   #16
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Now my question on a 93 yj 4.0 automatic with 33s what would be best gear
Have 4.10 in my K20 with 37s but have big engine and I can spin the wheels which I will not do anymore at $400.00 a tire lol
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Old 02-23-2012, 07:12 PM   #17
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I had my d30 and d35 re-geared to 4.88's and completely rebuilt (bearings, shims, steam cleaned, etc.) in my 4 banger YJ for $1060 complete cost by an axle shop. I didn't put in lockers, new shafts, etc. Came with a 1 year warranty on parts and labor. Thought that was fair cost.

I have 31's for tires now, but will go to 33's and no more, which will be ideal for the gearing ratio as it sits now.
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Old 02-23-2012, 07:18 PM   #18
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I went 488 with my 4 banger and love it 31s now I get 65 at 3000 rpm.going to 33s and 488s will b good still...

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