Arabia wrote:

Mpenzi wrote:wow This is great.
Keep updating us guys.

Back from AEV Dbx ......... inner sleeves and .......... Yukon 4.88 ...... (also some other minor interior things) are with me ... fixed appointment with WM .... saturday they will start the work .......

Keep you updated ... once I will be able to use it on then Dunes ....

Does anyone have the same on a JK Auto 305/70/16 ??

Ciao
F

PS
But when the hell you stop updrading these Jeeps !!!!

Arabia,

I have the same specs and model of your car and i am planning to regear to 4.88. i want to buy the stuff from AEV and install it in WM but they told me that they will void the warranty on the diff. so i put my plans a lil bit on hold. is this happening to you also with WM? also please update us of what did you buy exactly from AEV and how much is the difference after regearing your car.

Thanks man, waiting for your update

Regards,

Salah

Ciao Salah,
....... WM has told the same, but ........ went to AEV to get the 4.88 ............ am going ahead with the upgrade.
Will let you have comments as soon as possible. Regearing will be done end of august .....

F

Just a small clarification guys.

WM or any dealer worldwide will not be in a position to give warranty on the after market part you will replace no matter where you install it. However, if they have some performance parts (if any, e.g. Mopar air intake, catback) and you do the whole job with them, they are bound to cover it with their warranty as per their policy.

khaiwi wrote:Just a small clarification guys.

WM or any dealer worldwide will not be in a position to give warranty on the after market part you will replace no matter where you install it. However, if they have some performance parts (if any, e.g. Mopar air intake, catback) and you do the whole job with them, they are bound to cover it with their warranty as per their policy.

Exact !!! That is what they have told me.

F

No I sound that I am WM staff heheheheheeh,, The fact is I do personally agree to this LOOOL

Arabia wrote:Ciao Salah,
....... WM has told the same, but ........ went to AEV to get the 4.88 ............ am going ahead with the upgrade.
Will let you have comments as soon as possible. Regearing will be done end of august .....

F

Looking forward to hearing from you man.

khaiwi wrote:No I sound that I am WM staff heheheheheeh,, The fact is I do personally agree to this LOOOL

That the way we love you chief

SSS wrote:

MarwanJeeper wrote:Mine is 35 with 4.88 and its not going very well..maybe should go for 5.13

well ... I assume you have the 4spd auto

the only manufacturers with lower than 4.88 for JK(!!!) D30 are nitro gears ( 5.13 ) ... dunno if you want such a small pinion on such a small ring diameter

4.88 is perfect for the 42rle 4spd auto WITh 33" TIRES !

Was browsing on AEV's site (somehow a favorite hobby ) and they have the Yukon 5.13 which they state is for the JK. Would that be an option?

heh, well, reading Khaiwi's post where he says he seldom uses Low, it seems that 5.13 is overkill? If you never use it, then why get it, right? Unless maybe there are advantages of driving in H instead of Low?

Arabia wrote: Back from AEV Dbx ......... inner sleeves and .......... Yukon 4.88 ...... (also some other minor interior things) are with me ... fixed appointment with WM .... saturday they will start the work .......

Keep you updated ... once I will be able to use it on then Dunes ....

Alf mabrook!

What is your impression so far? And which inner sleeves did you get from AEV? I'm thinking of doing the same, so would be good to buy equipment that WM is comfortable with.

desertfun wrote:

SSS wrote:

MarwanJeeper wrote:Mine is 35 with 4.88 and its not going very well..maybe should go for 5.13

well ... I assume you have the 4spd auto

the only manufacturers with lower than 4.88 for JK(!!!) D30 are nitro gears ( 5.13 ) ... dunno if you want such a small pinion on such a small ring diameter

4.88 is perfect for the 42rle 4spd auto WITh 33" TIRES !

Was browsing on AEV's site (somehow a favorite hobby ) and they have the Yukon 5.13 which they state is for the JK. Would that be an option?

heh, well, reading Khaiwi's post where he says he seldom uses Low, it seems that 5.13 is overkill? If you never use it, then why get it, right? Unless maybe there are advantages of driving in H instead of Low?

if you are only using Lo in the desert ... anything above stock 3.73 will do for big tires
but if you are using your Jeep as well in the city and on the highway in 4hi you should know the 4spd auto has 0.69 final ratio in D ... so choose your RIGHT gearing ... or it will be a slug

UPDATE : yes for the JK front D30 meanwhile several manufacturers offer deeper gears, Motive, Nitro and Yukon amongst them ... all are good ...

Thanks for the info. When you say 'slug', do you mean top speed only or also acceleration? I'm not your typical traffic light sprinter, but still, a little more power in daily commute would be welcome

Do you know the top speed for the 4sp auto JK with 4.88 versus 5.13?

desertfun wrote:Thanks for the info. When you say 'slug', do you mean top speed only or also acceleration? I'm not your typical traffic light sprinter, but still, a little more power in daily commute would be welcome

Do you know the top speed for the 4sp auto JK with 4.88 versus 5.13?

Of course you mean 4spd auto JK with 33" tires and 4.88 ... hmm dunno ... I am a TJ man

again take a look here :

Yes,i know this graph, however, it seems to be wrong. E.g., the 2011 JK autospeed has 32" wheels with 3.21 stock ratio, right? if above chart would be correct, it means that this car would be seriously underpowered? And even 5.13 only provides "acceptable use", hence if you want a decent drive, you would have to upgrade to 5.38 or 5.86 at least.

I'm not an expert, but somehow this chart doesn't seem to be correct?

BTW, the low gear is 2.72:1, how does this convert into the above table? Apologies for these beginner's questions, but i am quite new to this topic, so thank you all for your patience

No Problem at all .
And Yes, the 2011 is seriously underpowered... Thats because of the Emissions law in the states. With automatic you Need to regear a lot.

However with 32'' and automatic i'd go to 4,88 with 35 to 5.13- to 5.38 perfomancewise .