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Old 04-04-2014, 06:23 PM   #1
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Another Regearing Question

I'm going to tow a small trailer about 500 miles and I'm going to regear, I currently have 31x10.5 tires and I'm considering a 4.10 gear swap. Is there something else I should go with? Lsd or lockers or anything while I'm in there?

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Old 04-04-2014, 08:56 PM   #2
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If it is just for a one time trailer pull so you want lower gears for more umph why not get same effect with smaller diameter tires just for the trip

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Old 04-04-2014, 09:00 PM   #3
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If it is just for a one time trailer pull so you want lower gears for more umph why not get same effect with smaller diameter tires just for the trip
Good question, the answer is I'm actually wanting to regear anyways and plan to go to a 33-35" tire, it's not just for this move, just before it.
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Old 04-04-2014, 09:10 PM   #4
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Recommendations are usually based on which engine which tranny and if auto 3spd or 4 SPd OD what tire size you want and what you plan to use your jeep for including only off road type of off road and if also a daily driver
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Old 04-04-2014, 09:23 PM   #5
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Recommendations are usually based on which engine which tranny and if auto 3spd or 4 SPd OD what tire size you want and what you plan to use your jeep for including only off road type of off road and if also a daily driver
I have a 4 cylinder auto 3 speed, 31x10.5 tires and I need it to do well on the highway and as good add possible off-road. Should I have any work done to my front and rear end while they are in there that could benefit off road use?
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Old 04-05-2014, 02:01 AM   #6
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With a 4 banger (which I have) I've seen people who roll 33's go with 4.88 gears, not 4.10s. Hopefully someone more experienced than I can/will chime in, but that's what I've seen as the norm.
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Old 04-05-2014, 05:43 AM   #7
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With a 4 banger (which I have) I've seen people who roll 33's go with 4.88 gears, not 4.10s. Hopefully someone more experienced than I can/will chime in, but that's what I've seen as the norm.
Thanks, I'll keep digging but I think I'll go with 4.56. I've heard a couple people say 4.88 is too much. Well regearing give me more torque off road?
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Old 04-05-2014, 10:15 AM   #8
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Thanks, I'll keep digging but I think I'll go with 4.56. I've heard a couple people say 4.88 is too much. Well regearing give me more torque off road?
If you think about it like this, it's easier to understand. The wheels are basically 'gears' that touch drive the jeep. The bigger they are, the less they'll turn with stock gearing...with newer deeper gears, the wheels will spin at the same rate your jeep used to when stock... So if you put deeper gears than your ratio, then the wheels will spin even more than usual.


So, it's possible. But I'm not sure. Someone else has to chime in.
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Old 04-05-2014, 10:42 AM   #9
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4.56 would be a good choice for the 2.5L and 3 speed automatic with 33" tires.
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Old 04-05-2014, 11:37 AM   #10
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I had 4.10 gears and 33's on a 4cyliner/ 5speed manual. It was very underpowered going up hills but other then that i found it fine. Offroad, i'd only use 4LO unless it was just flat gravel.

My advice is if you want to run 33's, i'd go to 4.56, however if you are thinking 35's then you'd want 4.88's for sure. The 4 cylinder loves low gears
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Old 04-05-2014, 12:07 PM   #11
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I just regeared my 4cyl 5 speed manual to 4.88 running 33x12.5x 15 Goodyear mtrs. From 4.10. I can use 5 gear again and 4wd high. Took a 800+ trip to Idaho to do some wheelin. Ran 65 mph on the hwy no problem except for some 5% up hills. Used 4wd low in first gear and with lockers it will climb just about anything. While the shop was regearing I had the back axle shifts up graded to chromoly and ARB lockers front and rear. Love it!
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Old 04-05-2014, 01:52 PM   #12
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I just regeared my 4cyl 5 speed manual to 4.88 running 33x12.5x 15 Goodyear mtrs. From 4.10. I can use 5 gear again and 4wd high. Took a 800+ trip to Idaho to do some wheelin. Ran 65 mph on the hwy no problem except for some 5% up hills. Used 4wd low in first gear and with lockers it will climb just about anything. While the shop was regearing I had the back axle shifts up graded to chromoly and ARB lockers front and rear. Love it!
4.88's are the recommended ratio for the 5 speed, but are too deep for the 3 speed auto.
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Old 04-05-2014, 02:38 PM   #13
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Originally Posted by blaze0222 View Post
I just regeared my 4cyl 5 speed manual to 4.88 running 33x12.5x 15 Goodyear mtrs. From 4.10. I can use 5 gear again and 4wd high. Took a 800+ trip to Idaho to do some wheelin. Ran 65 mph on the hwy no problem except for some 5% up hills. Used 4wd low in first gear and with lockers it will climb just about anything. While the shop was regearing I had the back axle shifts up graded to chromoly and ARB lockers front and rear. Love it!
What are arb lockers and what do they do? And what about limited slip differentials, still new to off-road vehicles over all to be honest.
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Old 04-05-2014, 02:47 PM   #14
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Arb is a brand of carriers, that's what the ring gear bolts to. They are an open carrier that performs like an open standard differential in most vehicles. But they can lock both axles together left and right to basically turn it into a full spool. Google is your friend.
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Old 04-05-2014, 03:20 PM   #15
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I would install an upgraded transmission cooler. B&M make nice units that don't cost too much. Also how much are you going to be towing?
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Old 04-07-2014, 02:55 PM   #16
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I would install an upgraded transmission cooler. B&M make nice units that don't cost too much. Also how much are you going to be towing?
No more than a thousand pounds.
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Old 04-08-2014, 05:11 PM   #17
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4.0l w/3sp auto 31" tires. 4.10 gears very good for this combination. Bigger tires require lower yet-also depends on trans (manual w/od?) And don't forget the speedo gear change.

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