for a 91 YJ with 4.11's and 33's.
Some online charts say 34 tooth, same say 36. Anyone have hands on
experience for this one?

--
JimG
80' CJ-7 258 CID, HEI
4.56 Gears, Lock-Right F&R
35" BFG MT on 15x10 Centerlines
D44 Rear, D30 Front. SOA
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries

00' TJ Sport 4.0L, 5sp
4.56 Gears, TrueTrac rear
33" BFG AT on 15x8 Eagle Alloys
D35 Rear, D30 Front. 3" Suspension Lift
Warn X8000i

 

On Jan 29, 3:11 pm, "JimG" <J...@nospam.com> wrote:
> for a 91 YJ with 4.11's and 33's.
> Some online charts say 34 tooth, same say 36. Anyone have hands on
> experience for this one?
>

Do you have a GPS? I checked the charts for mine and they said either
31 or 32 teeth (I've got 3.54's and 31's). So what I did was checked
my actual speed with the GPS, and divided my actual speed by the speed
indicated on the speedo. There was a 10% difference. My old gear was
a 27 tooth, so 27 teeth plus 10% = 30. I got the 30 tooth and my
speedo is exactly dead on.

 

On Jan 29, 3:11 pm, "JimG" <J...@nospam.com> wrote:
> for a 91 YJ with 4.11's and 33's.
> Some online charts say 34 tooth, same say 36. Anyone have hands on
> experience for this one?
>

Do you have a GPS? I checked the charts for mine and they said either
31 or 32 teeth (I've got 3.54's and 31's). So what I did was checked
my actual speed with the GPS, and divided my actual speed by the speed
indicated on the speedo. There was a 10% difference. My old gear was
a 27 tooth, so 27 teeth plus 10% = 30. I got the 30 tooth and my
speedo is exactly dead on.

 

On Jan 29, 3:11 pm, "JimG" <J...@nospam.com> wrote:
> for a 91 YJ with 4.11's and 33's.
> Some online charts say 34 tooth, same say 36. Anyone have hands on
> experience for this one?
>

Do you have a GPS? I checked the charts for mine and they said either
31 or 32 teeth (I've got 3.54's and 31's). So what I did was checked
my actual speed with the GPS, and divided my actual speed by the speed
indicated on the speedo. There was a 10% difference. My old gear was
a 27 tooth, so 27 teeth plus 10% = 30. I got the 30 tooth and my
speedo is exactly dead on.

 

On Jan 29, 3:11 pm, "JimG" <J...@nospam.com> wrote:
> for a 91 YJ with 4.11's and 33's.
> Some online charts say 34 tooth, same say 36. Anyone have hands on
> experience for this one?
>

Do you have a GPS? I checked the charts for mine and they said either
31 or 32 teeth (I've got 3.54's and 31's). So what I did was checked
my actual speed with the GPS, and divided my actual speed by the speed
indicated on the speedo. There was a 10% difference. My old gear was
a 27 tooth, so 27 teeth plus 10% = 30. I got the 30 tooth and my
speedo is exactly dead on.