Re-gear from 3.73 to 5.13

[NC_Overland]

11 second quarter miles.

Yeah. There’s no way. More like 16 sec. lol. My S3 with bolt ons (stock turbo) and a good tune barely does 11s and it’s pretty damn fast.

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[Alpine Warthog]

As I said, it's all about use case. In Moab, where I do almost all my wheeling, broken 5.13s in a Dana 44 are pretty common, but almost never with 4.88s. I'd happily and reliably run 5.13s if I wheeled in the Appalachian mountains, or even the Pacific Northwest's loamy soil, but on the very grippy sandstone and desert rocks here in Utah they are consistently a problem with a Dana 44.

Damn, I Iive in the Alleghenies/Appalachians and am planning a trip to Moab....

I guess I'll have to be careful with the skinny pedal

 

[JT1]

[

Lay pretty solid 11's........when does that even mean in plain English.

that's an 11.

 

[NC_Overland]

Yeah right, somebody smoking weed.....My 392 Wrangler with 5.38 gearing won't run 11's so a stock 3.73 gear 3.6 V6 on 34's.......might run 18's.

So much torque, it twisted the chassis right off the line.

 

[Sweetums]

Damn, I Iive in the Alleghenies/Appalachians and am planning a trip to Moab....

I guess I'll have to be careful with the skinny pedal

Yeah, just be gentle with it. In the mud you can power through, out here it's the "Make problems bigger and happen faster" pedal. Also, don't be afraid to shift out of 4 and into 2 if you have the make a really tight turn - you will absolutely feel the driveline bind in 4 low on the slickrock.

 

[slodsm]

I went 4.10 to 5.13, I’ve ran 37’s, 38’s, and 40’s.

At no time did I wish I’d gone with less gear. You chose properly.

 

[Jteakus]

Lay pretty solid 11's........when does that even mean in plain English.

I'm glad someone else asked this. I had it narrowed down to 11's in the 1/4 or twice stripes and there ain't no way it's running an eleven.

 

[Tommyd]

All the feedback I’ve read is 4.88 people wish they went 5.13, not the other way around.

Exactly.

 

[bleda2002]

I'm glad someone else asked this. I had it narrowed down to 11's in the 1/4 or twice stripes and there ain't no way it's running an eleven.

With a jeep it could just mean getting 0-60 in 11 seconds with big ass tires lol

 

[NC_Overland]

You’d probably need close to 1000 hp and still need proper gearing. Raptor R has 720 hp and still runs a 12 sec quarter mile.

 

[mtbgordon]

With a jeep it could just mean getting 0-60 in 11 seconds with big ass tires lol

11 business days

 

[Panthers65]

Dana themselves have confirmed there is no substantial strength difference between 4.88s and 5.13s. choose your gear based on your conditions/driving habits and stop worrying about strength difference.

The only time I could see the 4.88's being preferential vs 5.13's is someone in the midwest or southwest where drivers are routinely running 85+mph. Even then, the Jeep is so unaerodynamic I can't imagine there would be any noticable difference in MPGs rrunning 2500 RPM vs 2300 RPM. In most all other situations (mountain driving, rock crawling, city driving, towing, ect...) the deeper gear set is going to be beneficial.

And I would agree with the above, for as many years as I worked parts counter in a Jeep shop, it's 99%/1% of regrets are "I wish I would have gone deeper gears", almost never "I wish I wouldn't' have gone as deep"

 

[ndesantis]

You'll love them. The margin between 4.88 and 5.13 pinion is so small that if you were breaking one you'd be breaking the other, it's less than 5% on advantek axles. Usally breaking your pinion is mostly a right foot problem, don't bounce the jeep while flooring it and you'll be fine.

Ton of people running 5.13s on this forum and jl forum and broken rings and pinions are not a common issue we have.

Dana themselves have confirmed there is no substantial strength difference between 4.88s and 5.13s. choose your gear based on your conditions/driving habits and stop worrying about strength difference.

The only time I could see the 4.88's being preferential vs 5.13's is someone in the midwest or southwest where drivers are routinely running 85+mph. Even then, the Jeep is so unaerodynamic I can't imagine there would be any noticable difference in MPGs rrunning 2500 RPM vs 2300 RPM. In most all other situations (mountain driving, rock crawling, city driving, towing, ect...) the deeper gear set is going to be beneficial.

And I would agree with the above, for as many years as I worked parts counter in a Jeep shop, it's 99%/1% of regrets are "I wish I would have gone deeper gears", almost never "I wish I wouldn't' have gone as deep"

thanks good info. like i said i’ve already made the purchase more or less looking for confirmation that i did the correct thing. Looks like it’s a mixed review but as you just mentioned most people are happier with deep gears rather than not deep enough

 

[DanJT]

i have a willy’s edition they come stock with 3.73 so im really feeling the lag lol. you’re lucky you have that kind of power without having to re gear. do you have a banks pedal monster? that’s helped me out a bit but it’s far from the solution lol

Nope, stock all the way. That and I have 4.10's

 

[Jeeper44mag]

Two things. One is 3:73 vs 4.10 and the other is the actual tire. If you’re running say BFGs, they run really small and are light. 37s are almost 35s with them.

This. ^^^^ BFG "37's" are actually ~35.5"

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