There is no debate, go 4.88 gears (my review)

[WK2JT]

Just received a quote from a dealership in Central Florida for a 4.88 Mopar re-gear for $3,240... I have a JT rubi 8 Speed Auto. That was about ~ $1,000 more than I was expecting. Believe it or not that is supposedly with a special discount they are offering me due to a misunderstanding when I bought the Jeep (Long Story). Is that what I should expect for a re-gear now or am I being fleeced?

From the dealership? Does it come with a nation wide warranty so you could go to any dealership for warranty work? Honestly, it’s high compared to independent shops, but not as high as I figured a dealership would have quoted. Independent shops would be about $1k less.

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[TheSolarWizard]

Just received a quote from a dealership in Central Florida for a 4.88 Mopar re-gear for $3,240... I have a JT rubi 8 Speed Auto. That was about ~ $1,000 more than I was expecting. Believe it or not that is supposedly with a special discount they are offering me due to a misunderstanding when I bought the Jeep (Long Story). Is that what I should expect for a re-gear now or am I being fleeced?

id go to a drivetrain specialty shop. $2000 is what I’d expect. $3200 is more like having trusses installed simultaneously

 

[Silvertruck]

Figure about $2500 for gears with parts and labor. I had my axle trussed and gusseted at same time and it was more than $3200. Cant remember the breakdown now. But worth every penny to me.

and 5.13’s probably work well. I think for light rig on 37’s 4.88’s were perfect for mpg and trail riding. If i had a different setup 5.13’s may have made sense. Just go with a hard set.

 

[calipoontappa]

2500??? Oof I paid 1300 and thought that was a bit steep. Glad I live in Cali and I have to disagree with the OP, I love 5:13s I’m in 8th going at 70 going at a slight incline where I was doing it in 4-5th on 4:10s. My friend has 4:88 and he regrets not going 5:13 after being in my JT.

 

[Silvertruck]

Results may vary. $1300 for both axles with kit and gears is cheap.

 

[FloridaMan]

From the dealership? Does it come with a nation wide warranty so you could go to any dealership for warranty work? Honestly, it’s high compared to independent shops, but not as high as I figured a dealership would have quoted. Independent shops would be about $1k less.

They told me it would remain warrantied since it is Mopar replacement 4.88 gears and the Jeep Dealership installation. I was told if I replace outside of the dealership or with non-mopar parts the drivetrain would no longer be warrantied. His initial quote was actually $4,812, but they are supposedly offering to do it at their cost of $3,243 (30% Markup) due to a previous issues we had...

 

[FloridaMan]

Welp, finally pulled the trigger on the re-gear. Dropped it off today, I'll update once I pick it up later this week. Went with the 4.88 Mopar, excited to see how it feels. I honestly, didn't mind the 4.10s whenever I was putting around town under ~45, but, I strung several days of hwy driving together and only hit 8th a few times going downhill.

 

[Blackjeepjk]

Sub’d for near future reference

 

[jtforrester]

So, the debate, at least for me, is settled

But, as decent as the 4.10s are with allowing you to get down the road, the 4.88’s are a game changer, and its not even close.

I also agree with this. I have 37 inch BFG KO2s and just installed 4.88 gears last week and it is, indeed, a game changer.

 

[Bonanza]

Eaton just released an E-locker. I was planning on regearing alone, but waiting for a locker too... Argh.

 

[NCLife]

I also agree with this. I have 37 inch BFG KO2s and just installed 4.88 gears last week and it is, indeed, a game changer.

What was your cost?

 

[WK2JT]

Eaton just released an E-locker. I was planning on regearing alone, but waiting for a locker too... Argh.

https://www.quadratec.com/p/eaton/dana-44-electric-locker-wrangler-jl-gladiator-jt-14234-1

 

[Bonanza]

https://www.quadratec.com/p/eaton/dana-44-electric-locker-wrangler-jl-gladiator-jt-14234-1

Yeah, $1300 is a tough pill to swallow for an item I've yet to --need-- despite doing some heavy wheeling.

 

[AZCooWhip]

Don’t fear the gear. 4:88s are a must on these. Especially with mods. 37x13.5s and 3” with other goodies. She gets up and goes at 18+ mpg to boot.

 

[bcurtman]

I'm going to attempt to share an Excel Spreadsheet I've used for years for observing gear ratio, tire size, and their effects on MPH and RPM. 79 Jeeps in, and I've only actually done 3 or 4 gear changes. CJ's were geared notoriously high, with most having 3.54 out of the box. You could end up with a 2.73 even!
LTD simply means Loaded Tire Diameter. You NEVER EVER use the size of the tire. For example, it would be highly rare to have a 35" tire that is 35" tall. Swampers were typically close. You also never measure the height of the tire if you want to be accurate. The fact is, the tire HAS TO roll around its circumference on the ground. So, measure around the tire and divide by pi (3.14159 will suffice) to get the correct diameter.
Its a fun little tool to use when everyone is talking gears and tire sizes.

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