ratio
08-24-2004, 12:56 PM
#1
Guest
Posts: n/a
ratio
I was talking to a friend the other day about ratio from front axles to back
.. If i have 4.11 in back and 3.73 in front ,that that would not change my
wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
to front and rear , not just one axle . so in importence witch is the
deciding facture. I read up on things but this subject i have not.
.. If i have 4.11 in back and 3.73 in front ,that that would not change my
wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
to front and rear , not just one axle . so in importence witch is the
deciding facture. I read up on things but this subject i have not.
08-24-2004, 01:11 PM
#2
Guest
Posts: n/a
Re: ratio
Say what?
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
08-24-2004, 01:11 PM
#3
Guest
Posts: n/a
Re: ratio
Say what?
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
08-24-2004, 01:11 PM
#4
Guest
Posts: n/a
Re: ratio
Say what?
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
08-24-2004, 01:11 PM
#5
Guest
Posts: n/a
Re: ratio
Say what?
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
You 'have' to have the same front to rear ratio or you cannot use 4x4.
The only exception I know to that is on some fronts they only make a
4.10 to match the rear 4.11 and that is close enough not to blow up
anything or burn the tires off too fast.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Al King wrote:
>
> I was talking to a friend the other day about ratio from front axles to back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
08-24-2004, 01:55 PM
#6
Guest
Posts: n/a
Re: ratio
You lost me.
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
08-24-2004, 01:55 PM
#7
Guest
Posts: n/a
Re: ratio
You lost me.
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
08-24-2004, 01:55 PM
#8
Guest
Posts: n/a
Re: ratio
You lost me.
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
08-24-2004, 01:55 PM
#9
Guest
Posts: n/a
Re: ratio
You lost me.
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
You need the same ratio front and rear or you will eventually do serious
damage to the tcase.
You need the same spline count left and right or the axles will be different
strengths and you will have issues relative to the diameter of things like
spider gears. Axle shafts are always sold in sets of two, one for each side,
so having a mixed set is seldom going to happen. I suppose you could replace
a set of axle shafts, then break one of the new ones and attempt to install
one of the old ones that was stashed in the corner of your garage.
If you are talking about the tooth count of the speedo gear, it will be
governed by the ratio of the rear axle.
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
08-24-2004, 05:23 PM
#10
Guest
Posts: n/a
Re: ratio
I saw a guy that just bought a YJ with that kind of difference (un-known to
him) and he took off down the road in 4X4 and you could see the frame bow in
the middle and then the chain in the T-case let go. It wasn't pretty!
--
JimG
80' CJ-7 258 CID, HEI
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
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>
him) and he took off down the road in 4X4 and you could see the frame bow in
the middle and then the chain in the T-case let go. It wasn't pretty!
--
JimG
80' CJ-7 258 CID, HEI
35" BFG MT on 15x10 Centerlines
D44 Rear, Dana 30 Front. SOA
4.56 Gears, LockRight F&R
Dana 300 w/4:1 & Currie twin sticks
Warn X8000i w/ dual batteries
"Al King" <alking425REMOVE@THIShotmail.com> wrote in message
news:_mKWc.13967$_H5.369759@news20.bellglobal.com. ..
> I was talking to a friend the other day about ratio from front axles to
back
> . If i have 4.11 in back and 3.73 in front ,that that would not change my
> wheel speed ,but if i went from 28 tooth to 32 tooth it would have to done
> to front and rear , not just one axle . so in importence witch is the
> deciding facture. I read up on things but this subject i have not.
>
>