Author Topic: Regearing curiosity  (Read 3087 times)

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Offline Jeffy

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Re: Regearing curiosity
« Reply #15 on: May 30, 2011, 11:33:26 AM »
I used to run 31's and 4.88, and it was almost like having a 4.0L.  When I switched to 33's, it went back to a 4-banger again...  I now wish I had gone with D44's front and rear so that I could go to 5.13's instead of 4.88!
That's kind of funny.  Since I'm running 33's now, I love my 4.56's.  I'm not sure if I could stand going lower actually.  Maybe it's because of the mods or maybe it's because I'm running skinnier tires and have no added width to the Jeep (aerodynamics) but I'm finding 4.56's pretty peppy while still letting me cruse at 70-75mph.
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
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"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline 95 Lowbuck

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Re: Regearing curiosity
« Reply #16 on: May 30, 2011, 11:40:46 AM »
Yes it's worth it to go 4.88's if you have 4.10's.
Maybe not if you have 4.56's + mods.
I'm pretty stock and need all the gearing I can get.
1995 YJ RioGrand, 2.5, AX5, 231 T.C., A.A. SYE,
D30, XJ D44, Truetracs F+R, CV D.S. F+R, 4.88's
R.E. 4" STD., 33-10.50 BFG KO2's on stock rims.

jcrockarell9937

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Re: Regearing curiosity
« Reply #17 on: June 04, 2011, 01:55:12 PM »
So if you do decide to regear for 32 or 33s, 4.88s?

How much is a regear total?

Offline Jeffy

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Re: Regearing curiosity
« Reply #18 on: June 04, 2011, 02:11:16 PM »
So if you do decide to regear for 32 or 33s, 4.88s?

How much is a regear total?
I had no problems with 4.56 and 32's and I really like 4.56's with my skinny 33's and mods.  Although most people and I tend to agree that you might as well go with 4.88's.  I forget what the exact number is but it's something like 4-500 more RPM's then with 4.56's.

Regearing really depends.  You'll spend around $300-400 on parts alone.  Most 4x4 shops will charge anywhere from $1300-1800 for everything.  I'd recommend checking speed shops that work on race cars as opposed to imports.  They typically do gears often and are quick.  You might even be able to haggle a discount if you bring the axles in by themselves.

Still the cheapest is to probably find a club or friend who can do them over lunch and a few bucks.  $75-200 an axle is be a good deal.
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline Eucalypta

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Re: Regearing curiosity
« Reply #19 on: June 07, 2011, 10:26:11 AM »
There used to be a neat gear and tire applet here: http://www.jeeptech.com/javaAps/gta.html
Not sure if it runs on your pc's; mine seems to give an error.
Nevertheless; explenation enough on the page.
To Boldly go where no one has gone before - James T Kirk
1994 YJ 2.5L - 1996 ZJ 5.2 V8

Offline aw12345

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Re: Regearing curiosity
« Reply #20 on: June 07, 2011, 04:01:34 PM »
I like to use this calculator, lets you do a side by side comparison
and gives you speed and rpm in all gears

http://www.grimmjeeper.com/gears.html
2006 Jeep Wrangler TJ SE
2004 Jeep Wrangler TJ SE

Offline Eucalypta

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Re: Regearing curiosity
« Reply #21 on: June 09, 2011, 01:36:35 AM »
I like to use this calculator, lets you do a side by side comparison
and gives you speed and rpm in all gears

http://www.grimmjeeper.com/gears.html

 :thumb:

So for my '94 Wrangler with AX5 and NP231:
On stock tires 29" (??) and 4.10 gearing I get the same results with 33" and 4.88 gearing ???

Is that correct? Will the car have the same top speed and performance offroad as I now have with my stock 4.10 and 33" or will they really improve?

To Boldly go where no one has gone before - James T Kirk
1994 YJ 2.5L - 1996 ZJ 5.2 V8

Offline sharpxmen

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Re: Regearing curiosity
« Reply #22 on: June 09, 2011, 01:47:11 AM »
:thumb:

So for my '94 Wrangler with AX5 and NP231:
On stock tires 29" (??) and 4.10 gearing I get the same results with 33" and 4.88 gearing ???

Is that correct? Will the car have the same top speed and performance offroad as I now have with my stock 4.10 and 33" or will they really improve?



if stock tires are 29 then the needed gearing for 33 to bring it back to stock final ratio (speed to rpm) is 4.66 (so 4.56 would be closest)
for 28'' would be 4.83 (in this case 4.88 would be the closest one)

i would go 4.88 regardless

your performance will improve
« Last Edit: June 09, 2011, 01:48:34 AM by sharpxmen »
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline Eucalypta

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Re: Regearing curiosity
« Reply #23 on: June 09, 2011, 07:11:07 AM »
Great!

I see somenice deals on R&P's.
Prices do vary.
Alloy: 204,99 US$
Superior: 243,95 US$
G2: 180,99 US$
Motive Gear: 192,95 US$

Any idea's on the quality?
To Boldly go where no one has gone before - James T Kirk
1994 YJ 2.5L - 1996 ZJ 5.2 V8

Offline jfrabat

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Re: Regearing curiosity
« Reply #24 on: June 09, 2011, 07:50:47 AM »
Great!

I see somenice deals on R&P's.
Prices do vary.
Alloy: 204,99 US$
Superior: 243,95 US$
G2: 180,99 US$
Motive Gear: 192,95 US$

Any idea's on the quality?

I just went through this; check this thread (second page):

http://4bangerjp.com/forums/index.php/topic,9919.0.html

Feliipe
'94 YJ 2.5L with 4" RE lift, Superwinch EPi9.0, FoMoCo e-Fan, SD30 and SD35 w/ARB-5.13, 165A alt., 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Hydroboost

Offline neale_rs

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Re: Regearing curiosity
« Reply #25 on: June 09, 2011, 08:07:23 AM »
I read in a magazine recently that Currie installs Motive Gears in their axles.  That should be a pretty good indication of their quality.
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

Offline sharpxmen

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Re: Regearing curiosity
« Reply #26 on: June 09, 2011, 08:53:05 AM »
Great!

I see somenice deals on R&P's.
Prices do vary.
Alloy: 204,99 US$
Superior: 243,95 US$
G2: 180,99 US$
Motive Gear: 192,95 US$

Any idea's on the quality?


you should be able to get the Motive cheaper than that

Motive or Superior - yes
G2 - NO
Alloy USA - not sure
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end