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Old 05-12-2013, 06:17 PM   #1
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What a Difference Gears Make!!!/My '98 TJ Build

First I shall set the scene:

Bone stock, except for 30x9.5 AT tires, '98 TJ 4.0L 5-speed. Completely un-molested and well maintained by PO. I bought it with well under 40k miles and begin the modification immediately.

Phase 1 (1 week after acquisition - Dec 2011): 2.5" RC lift (will be replaced), 1.25" BL, Brown Dog 1" lift MMs, 5 - 33x10.5x15 BFG MT KM2s, 5 - new black aluminum wheels.

Phase 2 (Just Completed all at once): JCR Sliders with steps, 7" extended flares, Currie control arms with JJs - all 8, TW DS & AA SYE, Ford 8.8 (completely rebuilt), 4.56 Yukon gears, new speedo gear, Detroit TTs front and rear, Metal Cloak adjustable rear track bar, custom built 1/4" plate TT skid, Hella Black Magic fog lights

This took me about 6 weeks to do. I did everything by myself, but the re-gear/LS diffs. These were done by the local shop. The overall difference is AMAZING!!! I went from essentially a 4-speed with no bottom end. Now there is a full 5 gears, and the ride is night and day. For anyone wondering if the $$$ to re-gear is worth it...I promise it is by far the best $$$ spent on the Jeep yet. It is hard to tell how much some of the other parts help by themselves because of so many parts were upgraded all at once, but the overall change is AWESOME. The 8.8 gives me some peace of mind and the rear end disc brakes make a substantial difference thus far in braking performance.

Phase 3 (Coming piece by piece in no particular order ASAP): JCR bumpers front and rear, Winch - undecided which, metal cloak 3.5" springs, cut down BL to about .5-.75", Bilstein shocks, Solid diff covers front and rear (at 500 mile gear fluid change), GR8 tops tire carrier

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Old 05-12-2013, 06:23 PM   #2
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sounds sweet....pics?

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Old 05-12-2013, 06:27 PM   #3
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Pics will have to wait until I get home. The firewall at work does not allow for the upload of pics or the use of the 3rd party pic hosting sites.
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Old 05-12-2013, 07:50 PM   #4
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Pics, hopefully this works.
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Old 05-13-2013, 08:31 AM   #5
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I totally agree with you regarding the regearing. I went from 3.07 to 4.56 with the 33" tires, and it is night and day. I love having 5 totally functional gears to work with now. I'm heading to superlift memorial day, and thinking that I won't even have to go into 4 low unless the terrain gets extreme.
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Old 05-31-2013, 06:55 AM   #6
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My Jeep ran like a champ at Superlift. Crawled at a snail's pace when I needed it to and hit steep hills effortlessly. Wish I had regeared sooner!
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Old 05-31-2013, 07:23 AM   #7
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Quote:
Originally Posted by Goalieme View Post
Solid diff covers front and rear
make sure to cut/grind half the front face so it clears the track bar. I cut mine up a bunch and welded it closed.



so...IMHO, stick with the OEM covers or a Barnett (stock cover w/ a skid welded on it)

more info here:
tj front adjustable track bars for 0-3.5", does yours hit or fit? - JeepForum.com
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Old 05-31-2013, 07:29 AM   #8
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I can see a big jump like 3.07 to 4.56 being night and day. In my case I went from the stock 4.10 to 4.88 and the differences were mild at best. Sure I got fifth gear back, but it just seems as if I've gained another gear, not really more power overall as most others seem to get. Weird.

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