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Old 04-02-2008, 04:58 PM   #1
Join Date: Apr 2008
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gear change? 33 x 12.50 2.5L 4 cyl

i have a 98 tj wrangler with a 2.5l 4 cyl. i wanted to put a lift on it and was against the idea of putting 33 x 12.50 tires on it. but i seen where people said that you could put 4.56 gears in it and it would get it back to stock. i have put the lift on this weekend and just got my tires on. my question is, is this true and how do i know what gear i have in there now? thanks

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Old 04-02-2008, 05:31 PM   #2
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you should have 4.10....

4.88 FTW

with your 4cyl that would be the ticket

USN 1985-1993
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Old 04-02-2008, 05:51 PM   #3
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you look at the rear differential. It should have an army looking tag on there..

Read that.. there should be something like 4.10 or 3373 or whatever.. 4 bangers usually come with 4.10s as Vector said.
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Old 04-02-2008, 06:02 PM   #4
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yeah get the 4.88s, you'll appreciate them much more than the 4.56s

.....01 TJ 4 banger, 2 in lift, 32x11.5 on 15x10 black steelies.....
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Old 04-02-2008, 07:57 PM   #5
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Originally Posted by Boulderv7 View Post
yeah get the 4.88s, you'll appreciate them much more than the 4.56s
NJ Army National Guard
Ready for deployment.

So many mods planned for the upcoming YJ:
4.6ltr stroker
3.5" lift kit
33" General Grabbers
Massey Ferguason Grey body
Kubota Orange suspension components
lots more...

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Old 04-02-2008, 08:21 PM   #6
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i have 4.88s with 33"s. perfect IMO
'90 YJ, ford 8.8, SOA, lincoln front, aussie rear, 4.88s, swampers.
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Old 04-04-2008, 10:10 PM   #7
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4.88's and a true 33" tire will make your speedo accurate with your stock speedo gear. Or at least it did with mine, I had changed speedo gears when I went to a 33" tire and my 4.11's and when I regeared I was able to put the stock gear back in. trXus in 33/12.50x15 on a 15x8 at 24 psi
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Old 04-05-2008, 10:14 AM   #8
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i have 4:11 and its near close to stock

98 TJ i4 4x4 Standard
4in skyjacker performance flex lift kit
33x12.5 BF Goodrich A/T
15x8 Rockcrawler steel wheels
Airaid intake
+44 flowmaster exhaust system
BLACKed out all chrome parts
hyperwhite lights
soundbar & pod speackers
quater mile remote & motion sensor alarm w/ remote start
. . . and then some
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Old 04-05-2008, 05:33 PM   #9
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I have 4:88's with a Ford Explorer 8.8 rear end. It works great. 70 on the freeway in 5th with no problem. Runs at about 3200rpm.

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