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Old 03-13-2011, 09:15 PM
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just bought my 4.5 rc lift and 32 in tires..i am going to be re gearing later on..will i be ok to install the lift and bigger tires and run it for a month or so with out regearing?
Old 03-13-2011, 09:39 PM
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you will not need to re gear I just changed my speedo gear on the tail end of the tranny on the tranfer case from a 34 tooth to a 31 tooth. I would not regear unless you are gonna run a 33 or 35
Old 03-13-2011, 09:47 PM
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Originally Posted by xjryder
you will not need to re gear I just changed my speedo gear on the tail end of the tranny on the tranfer case from a 34 tooth to a 31 tooth. I would not regear unless you are gonna run a 33 or 35
Any reason for telling someone to not do it?
Old 03-13-2011, 10:01 PM
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Originally Posted by xjryder
you will not need to re gear I just changed my speedo gear on the tail end of the tranny on the tranfer case from a 34 tooth to a 31 tooth. I would not regear unless you are gonna run a 33 or 35

sure, nobody "needs" to regear. but it helps with gas mileage, stress on the drivetrain, acceleration, offroad power, cruising rpms, and passing power.


and to the O.P., you would be ok riding around for a month without regearing.
Old 03-13-2011, 10:06 PM
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you will be fine until you can re-gear. and do re-gear. Just keep in mind your goals and what you have vs what you want. you only want to do it once....
Old 03-13-2011, 10:16 PM
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I've been rolling around on 33/12.50-15's with my RC 4.5 for a little over a year now n still haven't re geared from the stock 3.55's n I've drivin this thing over 12,000 miles n 8 months!!! But I've been through 3 TC's in the past year and a half!!! GAS PRICES SUCK WHEN UR ONLY GETTING 9 MPG!!!!!!
Old 03-13-2011, 10:20 PM
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is your XJ an auto or a manual? if its a manual then you have 3.07 gears which IMO is worse than 3.55's especially on 32's.
Old 03-13-2011, 10:38 PM
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I've got an auto..it was either re gear to 4:10 or get an sye and cv kit and I decided on the sye this s*** is not cheap! But thank you for the advice I didn't want to screw something up that can be avoided..
Old 03-13-2011, 10:40 PM
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I would still consider regearing...

roughcountry offers motive gears w/install kits for under $500... that's pretty fair!
Old 03-13-2011, 10:43 PM
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Originally Posted by rocko
I would still consider regearing...

roughcountry offers motive gears w/install kits for under $500... that's pretty fair!
Yea I actually contacted grimus the rough country rep on here and I talked to him about them that's the route im gonna go..is it dificult to install the new gears?
Old 03-13-2011, 10:45 PM
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Sorry, no experience of doing it myself. I do plan on regearing (3.07 to 4.11) but I will be paying someone to do it for me!
Old 03-13-2011, 10:47 PM
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Originally Posted by rocko
Sorry, no experience of doing it myself. I do plan on regearing (3.07 to 4.11) but I will be paying someone to do it for me!
Haha I hear you on that I want it done right ill just have the guy that's helping do my lift do it for me and show me how its done..thanks bro
Old 03-13-2011, 10:48 PM
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Good luck!!!
Old 03-13-2011, 11:03 PM
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CJ, I run 32's on mine and it was fine with the 3.55 gears until I hit the hills or towed, then it bogged down the engine something terrible. I recently installed the 4.10 gears and it has made a night/day difference. 32's running on 4.10's put you a little lower than stock. I spent 2 weeks doing the gear change, but it was worth it. If you know someone who can do it then let them or if you can stand to pay someone else then do it. It's a job and a half. I just couldn't stand the thought of not learning something new about my Jeep.
Old 03-13-2011, 11:11 PM
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Gears are something you can really **** up if you dont know what you are doing, do them wrong and you will be down for a full axle rebuild and have to buy new gears. Just really tight clearances that you can easily get wrong. I work with a differential guy so I have that perk, he charges 300 not including parts to install gears, but thats here in the tacoma wa area.


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