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Old 04-08-2014, 10:12 PM   #1
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Regearing to 4.56

Is this an easier upgrade to do for a person with good mechanical abilities?
I want to install them my self. Is there any tips/ tricks you guys can help me with?

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Old 04-08-2014, 10:17 PM   #2
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The general consensus is that it is best left to a good gear guy. With that being said, it can be done by somebody with very good mechanical ability. I learned to do my own. The learning curve is very steep and the tools are very expensive. I can only suggest reading/studying a crap load before you make a decision to do it. If it's your DD, probably better to let someone else do it as it isn't a 45 minute job the first time out.

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Old 04-08-2014, 10:18 PM   #3
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Great question to ask. I'm curious myself. All the YouTube videos make it look fairly easy but I heard you should learn to do it with a pro cuz of precision of timing sequences.
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Old 04-08-2014, 10:24 PM   #4
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the general consensus is that it is best left to a good gear guy. With that being said, it can be done by somebody with very good mechanical ability. I learned to do my own. The learning curve is very steep and the tools are very expensive. I can only suggest reading/studying a crap load before you make a decision to do it. If it's your dd, probably better to let someone else do it as it isn't a 45 minute job the first time out.
x2!
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Old 04-08-2014, 10:46 PM   #5
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x2!
If i buy the gears, how much would a good mechanic charge to install them? and once i get them in could i later take them out and replace carrier with locker and just put the current shims on it.
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Old 04-08-2014, 10:53 PM   #6
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If i buy the gears, how much would a good mechanic charge to install them? and once i get them in could i later take them out and replace carrier with locker and just put the current shims on it.
DO NOT BUY THE GEARS!! Decide what gears you want and have the shop buy them and install them! If you buy the gears and the shop installs them and then there's an issue with it later the shop can claim that it was a problem with YOUR gears not their installation. If you go with the shops recommendation and they install them you're covered 100%. My shop for example did not like Yukon or G2 strongly recommended Sierra gears. I went with Sierra gears.
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Old 04-08-2014, 10:56 PM   #7
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^^x2
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Old 04-08-2014, 10:56 PM   #8
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DO NOT BUY THE GEARS!! Decide what gears you want and have the shop buy them and install them! If you buy the gears and the shop installs them and then there's an issue with it later the shop can claim that it was a problem with YOUR gears not their installation. If you go with the shops recommendation and they install them you're covered 100%. My shop for example did not like Yukon or G2 strongly recommended Sierra gears. I went with Sierra gears.
How much did he charge to install with gears and all.
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Old 04-08-2014, 11:14 PM   #9
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and once i get them in could i later take them out and replace carrier with locker and just put the current shims on it.
Nope. Doesn't work that way. If you think you want a locker, then get the locker and gears done at the same time. Any time you change gears, carriers, or bearings, you need to have the gears set up again. We are talking thousandths of an inch here to get the job done right. The tolerance differences between products is just too great.
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Old 04-08-2014, 11:14 PM   #10
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My quote was $1990 for 4:88's, new seals and bearings all around and basically a "no-fault" warranty. They know I wheel and stand behind their work and recommendations. There were cheaper shops for sure but they only offered 60 days warranty!
My recommendation, ask in your local forum, talk to local Jeep clubs, check BBB and get everything in writing!
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Old 04-08-2014, 11:31 PM   #11
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Typical book labor is 5.9 hrs to re-do a rear end. Add to that your parts.
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Old 04-09-2014, 12:01 AM   #12
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Typical book labor is 5.9 hrs to re-do a rear end. Add to that your parts.
so would you add another 5.9 hrs for front end too
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Old 04-09-2014, 03:24 AM   #13
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I recently upgraded to 488 gears. I have locking differentials cost was around $1450. That included new bearings in both front and rear ends. I'm real happy with the 488 gears. I'm not sure how your setup but you might consider them over the 456 gearing.
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Old 04-09-2014, 07:24 AM   #14
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I recently upgraded to 488 gears. I have locking differentials cost was around $1450. That included new bearings in both front and rear ends. I'm real happy with the 488 gears. I'm not sure how your setup but you might consider them over the 456 gearing.
im on 33x12.50. 2 inch lift. Plan on upgrading that pretty soom. Does a lift add any pressure or wear to gears?
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Old 04-09-2014, 09:36 AM   #15
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im on 33x12.50. 2 inch lift. Plan on upgrading that pretty soom. Does a lift add any pressure or wear to gears?
Lift has nothing to do with gears.
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Old 04-09-2014, 10:41 AM   #16
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Lift has nothing to do with gears.
i didnt think so. just making sure. So with 33x12.50 and 15x8 inch wheels and a 6 cylinder 5 speed. what would be suggested gears
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Old 04-09-2014, 10:50 AM   #17
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i didnt think so. just making sure. So with 33x12.50 and 15x8 inch wheels and a 6 cylinder 5 speed. what would be suggested gears
On 33" tires 4:56. 35" tires 4:88.
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Old 04-09-2014, 10:57 AM   #18
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i didnt think so. just making sure. So with 33x12.50 and 15x8 inch wheels and a 6 cylinder 5 speed. what would be suggested gears
It's not about what we would suggest today based on what you're running today... It's about where do you plan to be a year from now! See yourself getting 35's or even 37's? Plan ahead and save yourself a lot of time & money!

When I first got my jeep I made too many costly errors thinking about what I wanted today rather than where I would be with the jeep a year from now or even two years down the Mod road.
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Old 04-09-2014, 11:12 AM   #19
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I agree with the above post completely. To be honest, my Jeep isn't a daily driver so I wished I'd just gone 4:88 instead even on 33's knowing I'll be at 35's soon.
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Old 04-09-2014, 11:38 AM   #20
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It's not about what we would suggest today based on what you're running today... It's about where do you plan to be a year from now! See yourself getting 35's or even 37's? Plan ahead and save yourself a lot of time & money!

When I first got my jeep I made too many costly errors thinking about what I wanted today rather than where I would be with the jeep a year from now or even two years down the Mod road.
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I agree with the above post completely. To be honest, my Jeep isn't a daily driver so I wished I'd just gone 4:88 instead even on 33's knowing I'll be at 35's soon.

I agree completely. I dont plan on getting larger tires for a while. just because i wont have the cash for a while considering im a teenager and dont have a full time good paying job
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Old 04-09-2014, 11:52 AM   #21
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With more and more people running home built CNC machines and cheap digital dial indicators flooding the market that are surprisingly accurate, I'm shocked that folks aren't doing their own gear changes. The few times that I've taken my vehicle to a shop has always turned out less than satisfactory. If I can't do something I'm ready to read as many books as it takes and practice as long as it takes so that I don't have to rely on a mechanic that might not care or worse, might be suffering from an alcohol related hangover. Not trying to hijack but it would be great to see a do it yourself gear change sticky with a liability disclaimer for those that deem it necessary.
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Old 04-11-2014, 11:05 PM   #22
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You have a 2" lift if you do a 4" lift you will be replacing te rear drive shaft and installing one with a CV joint. There is some added cost to that also as as the CV jointed drive shaft is not a drop in system.

I don't think you can get 35" tires under a two inch lift with out a lot of rubbing.

I have 33" tires and 488 gears. I just drove from AZ to MN. The gear combo is not bad. At 75 mph the RPMs are at 3000 right up on the power band. Not to many hills you will down shift on. Mileage will drop a little but Eckblad it's a jeep.
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Old 04-14-2014, 11:14 PM   #23
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You have a 2" lift if you do a 4" lift you will be replacing te rear drive shaft and installing one with a CV joint. There is some added cost to that also as as the CV jointed drive shaft is not a drop in system. I don't think you can get 35" tires under a two inch lift with out a lot of rubbing. I have 33" tires and 488 gears. I just drove from AZ to MN. The gear combo is not bad. At 75 mph the RPMs are at 3000 right up on the power band. Not to many hills you will down shift on. Mileage will drop a little but Eckblad it's a jeep.
Yeah, I may go ahead with 4.88's just to be safe down the road.

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