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Old 04-10-2013, 11:44 PM   #1
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Unhappy Shaving? and 4.88s

I have a 2000 tj wrangler. 6.0 manual trans d35 and d30. I ordered a d44 for the rear with 4.88s and 4.88s for the front. However I heard from a fellow jeep friend of mine that you have to grind or shave off some of the inside of the housing of the diff for 4.88s. Is that true? Has anyone installed G2 4.88s gears inside their dana 30?

Unfortunately I have already ordered my 4.88 gears because what I read on this forum suggested nothing about having to shave to fit 4.88s inside a d30..

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Old 04-11-2013, 12:12 AM   #2
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Not G2 but I have 4.88 gears in my HP30 with Nitro gears and no issue. No reason they should be making their ring gears a larger diameter.

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Old 04-11-2013, 01:06 AM   #3
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Alright good to hear. I hope that my buddy was wrong. Do you know of anybody else that has put 488 G2 gears in a d30?
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Old 04-11-2013, 09:18 AM   #4
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I have never heard of 4.88 gears that needed shaving, I would be very surprised if G2's did..
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Old 04-11-2013, 09:31 AM   #5
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I have G2 4.88s in my stock D30 and D35 housing and mine is the 2.5. No issues.
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Old 04-11-2013, 09:33 AM   #6
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I honestly have no idea but maybe it has something to do with needing a different carrier when you up the gear ratio.
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Old 04-11-2013, 10:20 AM   #7
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Regardless of engine type, or brand of gears used, a Dana 30's ring gear is the same diameter.

Any difference in size would be reflected in the size of the teeth on the gear, not the diameter. Lower gears = more, smaller teeth.

That's why "low gears" (high numerically) are more fragile than "higher" gears.

Now you may need a different carrier as mentioned, depending upon what gears you presently have, but again - Gear fittment should not be an issue with the D30 housing.

My .02
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Old 04-11-2013, 10:21 AM   #8
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ok great.. thanks guys
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Old 05-25-2013, 07:17 PM   #9
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Quote:
Originally Posted by 1rbotma View Post
ok great.. thanks guys
I just put them in my Dana 30 G2's 4.88 did it myself with a E Locker and it works great......and I didn't have to shave a thing.except my wallet
Rob
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Old 08-06-2013, 12:44 AM   #10
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Quote:
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I just put them in my Dana 30 G2's 4.88 did it myself with a E Locker and it works great......and I didn't have to shave a thing.except my wallet
Rob

lol nice. well the guy that installed my 488s was a mechanic for 15 years and obviously was not a good mechanic. My new gears are torn to shreds. I am not very happy. He said I would have no problems!!!!!!!:bang head::bang head:
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Old 08-06-2013, 06:18 AM   #11
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Hope he warranties his work.

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