How to tell ratio??
10-12-2003, 09:44 AM
#11
Guest
Posts: n/a
Re: How to tell ratio??
If you turn the tire twice, you get an accurate count of the ratio.
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
10-12-2003, 09:44 AM
#12
Guest
Posts: n/a
Re: How to tell ratio??
If you turn the tire twice, you get an accurate count of the ratio.
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
10-12-2003, 09:44 AM
#13
Guest
Posts: n/a
Re: How to tell ratio??
If you turn the tire twice, you get an accurate count of the ratio.
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
Only one tire in the air though.
For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
turns meaning I have 3.31 gears.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Nick N wrote:
>
> Jack up one back tire and then tape a peice of string to your rear
> driveshaft. rotate the tire once, and then see how many times the string
> has wrapped around the driveshaft. Not precise but you could modify this
> method to be more accurate.
> Nick
>
> "JimG" <jimg@cj7.com> wrote in message
> news:aN1ib.803$kQ4.504@news02.roc.ny...
> > Usually there are two numbers on the tag... number of ring gear and pinion
> > teeth. Divide the big number by the little one. Example:
> > 43 / 14 = 3.07
> >
> > --
> > JimG
> > 80' CJ-7 258 CID
> > 35" BFG MT on 15x10 Centerlines
> > D44 Rear, Dana 30 Front. SOA
> > 4.56 Gears, LockRight F&R
> > Dana 300 w/4:1 & Currie twin sticks
> > Warn X8000i w/ dual batteries
> >
> >
> >
10-12-2003, 01:31 PM
#14
Guest
Posts: n/a
Re: How to tell ratio??
On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
10-12-2003, 01:31 PM
#15
Guest
Posts: n/a
Re: How to tell ratio??
On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
10-12-2003, 01:31 PM
#16
Guest
Posts: n/a
Re: How to tell ratio??
On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
<romainm@sympatico.ca> shared the following:
>If you turn the tire twice, you get an accurate count of the ratio.
>Only one tire in the air though.
>
>For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
>turns meaning I have 3.31 gears.
For two turns of your rear wheel? I thought one (instead of two)
complete revolution of the rear wheel would result in 3 1/3 or so
turns of the driveshaft if you had 3.31 gears. Can you please
elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
gears"? Thanks.
--
Travis
http://jeepadventures.dyndns.org/jeep.html
The meek shall inherit the earth. After I'm finished with it.
:wq!
10-12-2003, 01:42 PM
#17
Guest
Posts: n/a
Re: How to tell ratio??
travis wrote:
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
10-12-2003, 01:42 PM
#18
Guest
Posts: n/a
Re: How to tell ratio??
travis wrote:
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
10-12-2003, 01:42 PM
#19
Guest
Posts: n/a
Re: How to tell ratio??
travis wrote:
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
>
> On Sun, 12 Oct 2003 09:44:52 -0400, Mike Romain
> <romainm@sympatico.ca> shared the following:
>
> >If you turn the tire twice, you get an accurate count of the ratio.
> >Only one tire in the air though.
> >
> >For two turns of my rear wheel, my drive shaft spins 3 and 1/3 or so
> >turns meaning I have 3.31 gears.
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
I have an open diff so with one wheel on the ground stopped, the wheel
in the air turns twice to get the ratio.
Same deal if stuck on ice with only one wheel spinning, that one wheel
will be going two times faster than the speedometer says. So if you are
spinning 50 mph on ice, that one tire is doing 100 mph!
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
10-12-2003, 03:34 PM
#20
Guest
Posts: n/a
Re: How to tell ratio??
The driveshaft is being reduced by two to one spider gears of the
open differential: http://----------.com/dana35c/35cSpiders.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
travis wrote:
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> The meek shall inherit the earth. After I'm finished with it.
> :wq!
open differential: http://----------.com/dana35c/35cSpiders.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
travis wrote:
>
> For two turns of your rear wheel? I thought one (instead of two)
> complete revolution of the rear wheel would result in 3 1/3 or so
> turns of the driveshaft if you had 3.31 gears. Can you please
> elaborate on the "two turns of wheel=3.3 turns of driveshaft=3.31
> gears"? Thanks.
>
> --
> Travis
> http://jeepadventures.dyndns.org/jeep.html
> The meek shall inherit the earth. After I'm finished with it.
> :wq!