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Unread 11-06-2013, 10:37 PM   #1
Hartfamily
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Regear 456 vs488

456vs488 258 motor, t-18, 33" tires. Top speed 45 to 50 mph. Any recommendation for shop to install in northern cal. Also I would like to install arb locker any thoughts. Thanks mike

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Unread 11-07-2013, 06:28 AM   #2
CJ7KAHUNA
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Quote:
Originally Posted by Hartfamily View Post
456vs488 258 motor, t-18, 33" tires. Top speed 45 to 50 mph. Any recommendation for shop to install in northern cal. Also I would like to install arb locker any thoughts. Thanks mike

4.56 if those are the only options - and that was too much for mine w/33's. I'd go 4.10 if I had to do it over and I was going to run 33's. I am running 4.56 w/35's and is perfect for a dual purpose DD/Moderate off road set up IMO.
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Unread 11-07-2013, 08:51 AM   #3
Grumpy_one
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Those are the gears I'm running with my 35"s as well.
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Unread 11-07-2013, 09:34 AM   #4
jdarg
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I'd definitely go 4.88 if you are *sure* about that top speed and you are leaning more towards a trail rig and "around town" Jeep than a highway/freeway cruiser.

You'll be at 2600 RPM or so @ 50mph w/ 4.88's.
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Unread 11-07-2013, 09:46 AM   #5
LumpyGrits
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Well, I run 4:88's with my 33's and a T5 tranny.
Love'em.
Really don't think it would be worth it with a 4 speed to go from 4:56 to 4:88.
For trail use, in this case. I would go to a 4 to 1 t'case, and stay w/4:56 R&P.
I have a 4 to 1 t'case also, sure makes "rock'n" easier for sure.
LG
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Unread 11-07-2013, 09:59 AM   #6
Hartfamily
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Thanks all ,off road mostly the jeep is towed on the freeway but driven on highway 50 mph tops, any recommendation for a shop to install proline in San fransico or four wheel parts in Oakland . Thanks mike
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Unread 11-07-2013, 12:47 PM   #7
bspeth
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driveline and gear service in reno(sparks) was awesome.
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Unread 11-07-2013, 12:48 PM   #8
bspeth
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hey grumpy,you know Sean?,he lives in your AO.
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Unread 11-07-2013, 12:51 PM   #9
bspeth
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go to grimmjeepers web site and put in your info,that gear calculator is dead on. I got my 3.73s in my Cherokee dead nuts at 2390 at 70 mph.
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Unread 11-07-2013, 12:51 PM   #10
LumpyGrits
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hey grumpy,you know Sean?,he lives in your AO.
No, I don't.

OK............NOW, that I have my GLASSES on, I see a G and not an L......LOL
LG
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Unread 11-09-2013, 09:06 PM   #11
Hartfamily
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Thanks everyone for the info. I am looking at 488. Has anyone ever used Oakland four wheel parts?.
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Unread 11-10-2013, 11:34 PM   #12
Hartfamily
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How good are g2 gears
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Unread 11-12-2013, 07:07 PM   #13
capt205
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I have G2 sets in both my 2003 F350, amd my 1983 CJ7.

Did the F350 in 2008, and CJ in April of this year. No problems with either one, and I put between 20 and 30,000 miles per year on the Ford, often towing 15,000 lbs.

My opinion...they are gtg
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Unread 11-12-2013, 07:32 PM   #14
BlueRubiconrich
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why regear your old axles? get Dana 44's with the right gears.

Dana 44 bigger R&P 30 spline axle shafts
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Unread 11-12-2013, 09:25 PM   #15
lucdog
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Quote:
Originally Posted by BlueRubiconrich
why regear your old axles? get Dana 44's with the right gears.

Dana 44 bigger R&P 30 spline axle shafts
Not trying to start a arguement, but..
.


image-1977240550.jpg



image-3962913243.jpg

AMC 20 1 less spline, at 29.

The weak points are the 2 piece shaft to hub, the possibility of spun tubes in the center section, and I believe lighter weight tubes.
B
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