Spin your wheels, To re-gear or not is the question!!

[Xof]

answer : yes!!!

but this is not dramatic... make the calculation of the difference of torque between your previous tire and now (radius x force), that will not be critical. This is basic physics... i think we can say that you reduce the "safety factor" of all the parts of your car designed for stock use...

the question is: how big are these designer safety factor???

anyway, re gearing will improve the torque at the transmission end, but the drive shaft, all parts that are "transmitting" the energy to the tire will anyway be more stressed (again, not critical) due to the fact that your tire are bigger.

Actually, you may have the same issue with the resistance of your tires due to "mud" threads...

of course, i might be wrong, school is far away...

[Cybershot]

Radius / force will be from 31" (which I beleive is stock) and 33" a factor of 109,9%.

So to say 10 % more stress for the Diff.

[MarwanJeeper]

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

[SSS]

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 !

OR you need to swap in a regeared front D44 instead of the original D30 (and regear your rear D44) ... expensive

[WildFire]

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 !

OR you need to swap in a regeared front D44 instead of the original D30 (and regear your rear D44) ... expensive

check this one http://www.roughcountry.com/gears/jeep-jk.html

regards,

[Arabia]

Hi guys,
big and dramatic question:
My JK 2010 Sport Automatic w/tyres 305/70/16 is getting a reinforcement for the D30, now I would like to re-gear and the question is which ratio is more suitable the 4.56 or the 4.88 ?

Thanks for your help !!!

F

[MalteJK]

4.88

[Arabia]

Thanks

[Mpenzi]

wow This is great.
Keep updating us guys.

[Arabia]

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 !!!!

[ossme]

I only have 4.11 ...

[khaiwi]

The 305/70R16 are almost 33" (32.8"). With 4.88 R&P and Auto-gearbox puts you on the powerband compromising a bit on the fuel consumption. But, isn't that what you're looking for?

I have 35" tires on 5.13 R&P and manual gear LOOOOOOOOOOOOOOL My t-case ratio is 2.7:1 so I am always on 4x4-high even in LIWA booooooooooo

I engage the 4x4-Low and lockers once in a while to test if they are still working

[Arabia]

The 305/70R16 are almost 33" (32.8"). With 4.88 R&P and Auto-gearbox puts you on the powerband compromising a bit on the fuel consumption. But, isn't that what you're looking for?

I have 35" tires on 5.13 R&P and manual gear LOOOOOOOOOOOOOOL My t-case ratio is 2.7:1 so I am always on 4x4-high even in LIWA booooooooooo

I engage the 4x4-Low and lockers once in a while to test if they are still working

Ciao Chief,
after a lots of thinking and enquiering I have taken such a decision, the spares are with me and have booked at WM for the end of this month (20th) ............
Don't tell me that on friday you were running ONLY in 4H

F

[khaiwi]

Don't tell me that on friday you were running ONLY in 4H

F

My dear,

Friday trip could have been almost on two wheel drive with "LIWA-RUBICON". As I said even in LIWA I am always on high.....

Next trip sit with me as a passenger for a short spin to show you what I can do on high and when I engage the low gears LOOOOL

[Arabia]

Don't tell me that on friday you were running ONLY in 4H

F

My dear,

Friday trip could have been almost on two wheel drive with "LIWA-RUBICON". As I said even in LIWA I am always on high.....

Next trip sit with me as a passenger for a short spin to show you what I can do on high and when I engage the low gears LOOOOL

Chief,
I'll keep an eye on your trips, looking forward to be your passenger ..........

Hope to see you soon

Ciao
F