Regearing my jk
#41
I have a 2015 JKU Sahara that I wish I had paid attention and chosen the 3.73's! I do have the factory LSD (Trac-loc) though and would like to keep that. My off roading is some sand and a few mud hole parking lots, so the stock tires are good, just wish it had a little more get up and go around town and doesn't have to hunt on the highway when loaded! Swapping out the 3.21's is definitely on my list, but not sure how much this all would cost!
#42
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Location: Jane Lew, WV
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I had $80 in the carrier for the front. $675 in the gear kits for front and back with name brand bearings n gears. N install was $700. I went with 4:56's and glad I did. I'm running 35's n still have the gearing to go to a 37 n still be ok. Definitely satisfied.
#44
These men speak words of iron. Budget be damned. Do it right the first time, get your bigger tires and moderate lift now, and regear to a performance level for that size tire. If you need to cut cost at this time, just regear the rear and have them pull the front axle until you can afford to do that too. Just don't 4wd until then no big deal
#45
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Join Date: Mar 2013
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Another re-gear question re: TOWING...
Did a search thru the forum and couldn't find too much about this, so I thought I'd re-post the question here...
I've got a 2013 2-door JK, 3.21 6-speed manual [sport]. 32" DuraTracs --slightly smaller than stock. Owner's book says towing capacity for 3.21 gear ratio is 1,000 lbs. Owner's book also says same vehicle w 3.73 gear ratio, tow capacity is 2,000 lbs...
If I re-gear to 4.10, would that increase the towing capacity enough? Will also upgrade from stock radiator. I'm looking to tow just under 2,000 lbs... Can I do this [safely] in my 2013 2-door JK? Any insights would be appreciated!
Thanks!
I've got a 2013 2-door JK, 3.21 6-speed manual [sport]. 32" DuraTracs --slightly smaller than stock. Owner's book says towing capacity for 3.21 gear ratio is 1,000 lbs. Owner's book also says same vehicle w 3.73 gear ratio, tow capacity is 2,000 lbs...
If I re-gear to 4.10, would that increase the towing capacity enough? Will also upgrade from stock radiator. I'm looking to tow just under 2,000 lbs... Can I do this [safely] in my 2013 2-door JK? Any insights would be appreciated!
Thanks!
#46
JK Jedi
Did a search thru the forum and couldn't find too much about this, so I thought I'd re-post the question here...
I've got a 2013 2-door JK, 3.21 6-speed manual [sport]. 32" DuraTracs --slightly smaller than stock. Owner's book says towing capacity for 3.21 gear ratio is 1,000 lbs. Owner's book also says same vehicle w 3.73 gear ratio, tow capacity is 2,000 lbs...
If I re-gear to 4.10, would that increase the towing capacity enough? Will also upgrade from stock radiator. I'm looking to tow just under 2,000 lbs... Can I do this [safely] in my 2013 2-door JK? Any insights would be appreciated!
Thanks!
I've got a 2013 2-door JK, 3.21 6-speed manual [sport]. 32" DuraTracs --slightly smaller than stock. Owner's book says towing capacity for 3.21 gear ratio is 1,000 lbs. Owner's book also says same vehicle w 3.73 gear ratio, tow capacity is 2,000 lbs...
If I re-gear to 4.10, would that increase the towing capacity enough? Will also upgrade from stock radiator. I'm looking to tow just under 2,000 lbs... Can I do this [safely] in my 2013 2-door JK? Any insights would be appreciated!
Thanks!
#47
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The quick and simple answer is yes, it's all in the gearing. If you regear lower, you will be capable of towing more.....assuming of course you have a well secured receiver/hitch. The 3.21s only rated for 1k lbs cuz they can barely move the jeep itself efficiently. With 4.10s and a solid receiver, you should be perfectly fine towing 2k lbs in my opinion.
#48
JK Jedi
Well, as most things, it's a trade off. You'd love the towing and low end of the 4.56, but the high end would be a bit much for most people's preference. That's going to put you revving a bit high at highway/interstate speeds. With 4.56, you'd be ~2850 RPM at 70mph and ~3k+ RPM if you drive faster than that. That is about where I am on my 5.13s and 37s on my 3.6L. It's bearable, but it's lower gearing than most would like. It would take a decent bite out of fuel economy. 4.10's would probably be a little better all-round for you IMO; however, if you every think you might go with a larger tire then 4.56 might make some sense.