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Old September 7th, 2010, 05:38 PM   #1
justa5o
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4.88 gears ... cost?

OK, so I have a 1998 TJ with a 2.5l. What am I looking at cost wise to switch over to 4.88 gears?
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Old September 7th, 2010, 06:05 PM   #2
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You doing the work yourself?
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Old September 7th, 2010, 06:14 PM   #3
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not sure....have to see how hard it is. I do have a couple friends that are mechanics so may call in some favors.
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Old September 7th, 2010, 06:20 PM   #4
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i went with oem gears and they were 4.88 and i want to say for the set was about $300 plus you have to get master install kits for each axle. install prices i got were from 600 to 900 for both axles. hope this helps.
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Old September 7th, 2010, 06:37 PM   #5
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That does....thanks. Just trying to figure out my budget. I am looking at getting a 2" lift then 33" duratracs and new black rims. From what I have read I will need to upgrade to 4.88 gears due to the increase size and weight of the tires.
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Old September 7th, 2010, 07:09 PM   #6
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Quote:
Originally Posted by justa5o View Post
That does....thanks. Just trying to figure out my budget. I am looking at getting a 2" lift then 33" duratracs and new black rims. From what I have read I will need to upgrade to 4.88 gears due to the increase size and weight of the tires.
reading your post as I am trying to figure out if I can push 35's with my 4.0L and 4-11's.

And have one bit of input. I have a rubicon with a tere flex 3-1/2" lift. I have 285's that are 33 tall and 10-5 wide, and in a full stuff I will get rubbing on any corner. So what I am getting at is a 2 inch lift will not get 33 12-5's with out significant rubbing.
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Old September 7th, 2010, 08:33 PM   #7
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If you are doing it yourself, save the money and don't buy an install kit. 95 percent of the re-gears I've done I've been able to re-use bearings/seals/shims. You may need to pick up extra shims, which aren't much, or someone might even toss you some from an old project. Crush sleeves are cheap enough, but sometimes you can re-use them as well if there's enough left in them.

Just inspect bearings, races, and such. You'll often find everything in good shape, if not, it's much cheaper to replace just the needed parts than to buy everything you don't need in a kit.
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Old September 7th, 2010, 08:34 PM   #8
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Originally Posted by keithshotrodshop View Post
if you are doing it yourself, save the money and don't buy an install kit. 95 percent of the re-gears i've done i've been able to re-use bearings/seals/shims. You may need to pick up extra shims, which aren't much, or someone might even toss you some from an old project. Crush sleeves are cheap enough, but sometimes you can re-use them as well if there's enough left in them.

Just inspect bearings, races, and such. You'll often find everything in good shape, if not, it's much cheaper to replace just the needed parts than to buy everything you don't need in a kit.
x2
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Old September 7th, 2010, 09:36 PM   #9
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Thanks guys. Seems like this forum is going to be a great place for info and help!!!
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Old September 7th, 2010, 10:26 PM   #10
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Originally Posted by dougstephvoor View Post
reading your post as I am trying to figure out if I can push 35's with my 4.0L and 4-11's.

And have one bit of input. I have a rubicon with a tere flex 3-1/2" lift. I have 285's that are 33 tall and 10-5 wide, and in a full stuff I will get rubbing on any corner. So what I am getting at is a 2 inch lift will not get 33 12-5's with out significant rubbing.
I call bull shit, i ran 33s with 2in coil spacers. I did put tube fenders in the front but i only had minimal rubbing.
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Old September 8th, 2010, 07:12 AM   #11
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I guess I should have said this is going to be a daily driver and most if any offroading will be two tracks.
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Old September 8th, 2010, 07:29 AM   #12
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package price on 488s for your TJ (assuming its a D30 in front and D35 in back) - $318.95 delivered

add master install kits and your package price is $546.95 delivered.

These are all Yukon gears and installation kits. Give me a call if you have any questions.
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Old September 14th, 2010, 08:19 PM   #13
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if it is going to be drivin daily you should pick you gears based on your tire size. with my 4.0 and 4.88 and 33" tires puts the rpms at 3,000 at 65. that makes her run hot and also not good for fuel economy lol. but i geared for the 35 im going to put on soon. if ur not mud boging or rock crawling mine did very well with the 4.10 and 33 and could still be drivin on freeway.
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Old October 2nd, 2010, 08:07 AM   #14
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His is a 2.5 though not a 4.0 like yours. I have the 2.5 and just regeared to 4.88's and I run 33" tires. I love mine with the 4.88's in it and it does great offroad.
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Old December 28th, 2010, 10:43 PM   #15
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Quote:
Originally Posted by justa5o View Post
OK, so I have a 1998 TJ with a 2.5l. What am I looking at cost wise to switch over to 4.88 gears?
DTS has 4.88 for $147 to $186 im getting ready to do mine aswell
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