93 YJ rear end
 

I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
has the following:
52068008
3 07 5502-1
I was told that this means that the gearing is a 3:07 ratio and is not
sufficient for turning 31's.

Is this true?
Is there a place to get more info on differentials and gearing ratios?
(Bill?)

thanks

Re: 93 YJ rear end
 

I ran 31" on 3.07 for quite a while. Worked alright, just used 5th gear
a little less often.

-Dan

jaco wrote:
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks
>
>

Re: 93 YJ rear end
 

I ran 31" on 3.07 for quite a while. Worked alright, just used 5th gear
a little less often.

-Dan

jaco wrote:
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks
>
>

Re: 93 YJ rear end
 

I ran 31" on 3.07 for quite a while. Worked alright, just used 5th gear
a little less often.

-Dan

jaco wrote:
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks
>
>

Re: 93 YJ rear end
 

I am running 33's on 3.31's and it is doable. You just need to forget
about 5th or overdrive. It still works, but the gas mileage will suck
because the engine lugs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

jaco wrote:
>
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Re: 93 YJ rear end
 

I am running 33's on 3.31's and it is doable. You just need to forget
about 5th or overdrive. It still works, but the gas mileage will suck
because the engine lugs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

jaco wrote:
>
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Re: 93 YJ rear end
 

I am running 33's on 3.31's and it is doable. You just need to forget
about 5th or overdrive. It still works, but the gas mileage will suck
because the engine lugs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

jaco wrote:
>
> I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
> has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Re: 93 YJ rear end
 

"jaco" <jaco@wi.rr.com> wrote in message
news:Qc20e.12605$gx3.2587@tornado.rdc-kc.rr.com...
>I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
>has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Most manual trans 4.0L YJs came with 3.07s. The only exceptions were those
with Trac-Lok limited slips, which were 3.55s. Automatic 4.0Ls were 3.73s.

You can run 31s with 3.07 gears, but you'll feel a loss of torque and will
use rarely use 5th gear. Also, 31s will rub unless you install a mild lift
of some sort.

Re: 93 YJ rear end
 

"jaco" <jaco@wi.rr.com> wrote in message
news:Qc20e.12605$gx3.2587@tornado.rdc-kc.rr.com...
>I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
>has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Most manual trans 4.0L YJs came with 3.07s. The only exceptions were those
with Trac-Lok limited slips, which were 3.55s. Automatic 4.0Ls were 3.73s.

You can run 31s with 3.07 gears, but you'll feel a loss of torque and will
use rarely use 5th gear. Also, 31s will rub unless you install a mild lift
of some sort.

Re: 93 YJ rear end
 

"jaco" <jaco@wi.rr.com> wrote in message
news:Qc20e.12605$gx3.2587@tornado.rdc-kc.rr.com...
>I wish to put 31" tires on my 93 YJ, the tag on the 35C rear differential
>has the following:
> 52068008
> 3 07 5502-1
> I was told that this means that the gearing is a 3:07 ratio and is not
> sufficient for turning 31's.
>
> Is this true?
> Is there a place to get more info on differentials and gearing ratios?
> (Bill?)
>
> thanks

Most manual trans 4.0L YJs came with 3.07s. The only exceptions were those
with Trac-Lok limited slips, which were 3.55s. Automatic 4.0Ls were 3.73s.

You can run 31s with 3.07 gears, but you'll feel a loss of torque and will
use rarely use 5th gear. Also, 31s will rub unless you install a mild lift
of some sort.