Rubicon axles? - JeepForum.com

 
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post #1 of 6 Old 01-27-2008, 07:15 PM Thread Starter
Anti-bling
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Rubicon axles?

I can no longer use O/D (over drive) on the highway. I have 33's and stock 3.73(dana 44 and 30)...i think is what they are, and as soon as O/D kicks in, the jeep quickly loses momentum and speed. Its frustrating. I know the rubicon axles have 4.10s, would this be a large enough adjustment? Plus they have lockers. Are they hard to find? Is the swap hard? expensive? any help would be great!


'04 Wrangler Sport: Khaki, D30/D44, 2.25" BB, JKS 1.25" BL, OME Coils, Fabtech style front bumper, Herculined tub, Hi-Lift, Jerry Can, HUNSAKER ENVY seats, Flowmaster 40, CAI, Performance TB, 33x12.5's, Defender basket with SRC soft top rack, Lite Dot, CJ Tailgate, Rear Stinger.
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post #2 of 6 Old 01-27-2008, 07:19 PM
snakester14
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It would most likely be cheaper to keep your current set up and just regear/Lock it.
just my 2 cents.

1998 ZJ 5.2/2inch bb/265 a/ts/Flowmaster SOLD
1996 Stock XJ 4.0/ax-15/231 Traded
1998 4.0/ax-15/231 TJ on 33s SOLD
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post #3 of 6 Old 01-27-2008, 07:21 PM Thread Starter
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to 4.10's? thanks for the reply

'04 Wrangler Sport: Khaki, D30/D44, 2.25" BB, JKS 1.25" BL, OME Coils, Fabtech style front bumper, Herculined tub, Hi-Lift, Jerry Can, HUNSAKER ENVY seats, Flowmaster 40, CAI, Performance TB, 33x12.5's, Defender basket with SRC soft top rack, Lite Dot, CJ Tailgate, Rear Stinger.
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post #4 of 6 Old 01-27-2008, 07:29 PM
Wheelin98TJ
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3.73 to 4.10 is a 10% change, not much really.

For your setup, I'd go with 4.88.

Your 4 speed has a tall OD ratio of 0.69:1. This means you can run low axle gears and still be right within the acceptable RPM range for cruising on the highway.

With 4.88 gears and 33" tires, you'll turn about 2,500 RPM at 70 which is perfect. You'll have great low end power too.
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post #5 of 6 Old 01-27-2008, 07:52 PM
That1guy
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It would alot easier to regear than to buy new axels, unless you wanted a front 44 and the locker. Then you can just regear that too i guess. Anyways like said 4.88's are nice.

I'm forever grateful to Speedycat and RnEmOvr for their generosity
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post #6 of 6 Old 01-27-2008, 11:20 PM
Bigbob
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Quote:
Originally Posted by Anti-bling
I can no longer use O/D (over drive) on the highway. I have 33's and stock 3.73(dana 44 and 30)...i think is what they are, and as soon as O/D kicks in, the jeep quickly loses momentum and speed. Its frustrating. I know the rubicon axles have 4.10s, would this be a large enough adjustment? Plus they have lockers. Are they hard to find? Is the swap hard? expensive? any help would be great!

With an auto you want 4.88. Maybe 4.56 if you don't do hills. 4.10/auto/33" tires= no bueno. I got a 6 speed on my rubi so I did not have to regear.

2006 Solar Yellow Rubicon Unlimited
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6 Speed, Hardtop
Mods done: Hurst tee handle, cheap hand throttle, Rokmen Merc front bumper, Warn 9.5 TI winch with 3/8" X 100 worth of Viking yellow rope, DPG OME Ultimate with JKS ACOS up front, Kilby Gas Tank Skid, Kilby Steering Box Skid, Jeep Medic Belly Up, Skidrow Engine Skid, Rockcrusher Diff Skid in the rear, Warn Diff cover in front, , AR Outlaw II's and MTR 12:50/15's, Homemade rear Bumper, Cheap Cobra CB, Puma OBA, Sirius Radio, Locker Defeat, Rockhard cage, Rockmen short corners, homemade tire swing/tailgate hinge affair, Airlift air bags on the rear- - - - - - and more to come!
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