Topic: Front and rear Differentials and gearing

[howler]

 

Does anyone have the ability to check what axles and gearing I have on my 06 jeep tj with the following numbers?

Rear Axle # DANA 43225 278-5 REV K 02 27 97
differential tag # 52132357AA  73 2006230

Front Axle # DANA 40869 304-5 REV-S  110 895
Front tag # 52132351AA 73 2006 227-4

I know most came with a 30 front and 35c rear, but there was an option to upgrade and I have been surprised by some of the other options mine has so maybe I got lucky.

Thanks

[Jeffy]

Let me guess that's an automatic?

If I had to guess by looking at those numbers, I'd say your gear ratios are 3.73:1.

[howler]

Let me guess that's an automatic?

If I had to guess by looking at those numbers, I'd say your gear ratios are 3.73:1.

No I have a NSG 370 6 speed manual with the NP231j transfer case

[aw12345]

My 2006 Se with a 6 speed came with 3.73 gears. The fastest simplest check is to roll the jeep forward or backwards one tire rotation and count the drive shaft turns if its slightly less than 4 turns its a 3.73 if its a hair more than 4 its a 4.10

[Jeffy]

Late model Jeeps with the 6-speeds come with the same ratios.  Although I wasn't 100% sure.  With that tag though, I'm pretty sure you have 3.73:1's.  They went really high with the 6-speeds since they have the range and running gears in both manual and auto would simplify the assembly process.

[howler]

Late model Jeeps with the 6-speeds come with the same ratios.  Although I wasn't 100% sure.  With that tag though, I'm pretty sure you have 3.73:1's.  They went really high with the 6-speeds since they have the range and running gears in both manual and auto would simplify the assembly process.

Thanks,

I guess that is ok since I am only pushing 31's.
When I go up would you recommend putting the money in super 35 upgrades or find a dana 44 for the rear?
I have read a that the 30 fronts with super 30's upgrade and aussie lockers is more than adequate.

[howler]

My 2006 Se with a 6 speed came with 3.73 gears. The fastest simplest check is to roll the jeep forward or backwards one tire rotation and count the drive shaft turns if its slightly less than 4 turns its a 3.73 if its a hair more than 4 its a 4.10

I did the roll test looks like less than 4.

[Jeffy]

Thanks,

I guess that is ok since I am only pushing 31's.
When I go up would you recommend putting the money in super 35 upgrades or find a dana 44 for the rear?
I have read a that the 30 fronts with super 30's upgrade and aussie lockers is more than adequate.

You're only running 31's now but more then likely you'll be goign to 33's sooner or later, just about everyone does. 

I wouldn't waste money on a Super 35 if you are going to stay with 31's, it's a lot of money to invest in something that won't break that often.  If you got another set of axles, you'd have a complete set of spare parts, including axle shafts.  I'd just wrap those up and take them wheeling if you think things are going to get tough.  Although unless you're locked it shouldn't be an issue at all.

For the money of a Super35, you could probably get yourself a TJ D44 that would be bolt in.  Unless you know how to cut and weld, going with a Ford 8.8" would probably be cheaper then a TJ D44.  Unless you're geared ultra low and heavy on the throttle, I doubt you'll have any issues with a D44 or 8.8".  BTW: the 8.8" can be found with 4.10's stock, usually with an Eaton LSD.  If you don't care about disc brakes, the Ranger XLT came with 4.56:1's.  In either case you'd only have to regear the front axle, saving you some cash.

[Jesse-James]

Ranger XLT came with 4.56:1's. 

What's the width on them?

[chardrc]

plus with the super 35 kit you have odd ball shafts so if you break one its harder to find a spare on the trail... happened to someone at the jeep jamboree and it ended their weekend early...

[Jeffy]

What's the width on them?

Same as the Exploder, 58" IIRC.

[howler]

plus with the super 35 kit you have odd ball shafts so if you break one its harder to find a spare on the trail... happened to someone at the jeep jamboree and it ended their weekend early...

Do you think it is worth putting the locker in my 35c or wait until I get my 44's in it may be a year.

[chardrc]

i have a locker in my d35... but it depends on how hard you plan on wheeling it and how long it will be tell you get a different axle in there.... if its only going to be a year i would save my money for the axle in hope that you may have enough to put a locker in the new one right away...

[Jeffy]

Do you think it is worth putting the locker in my 35c or wait until I get my 44's in it may be a year.

Don't waste any money on the D35 if you're going to go with a 44.  You'll never recoup it.  If you were going to stick with it then it migth be different but a year isn't that long.

[neale_rs]

Same as the Exploder, 58" IIRC.

Here in Mexico, the extended cab Rangers come with D44s.  If they are also 58", they will be a great source of D44s for YJs and TJs once they start showing up in the junk yards.