9" to replace 35c help
Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a
ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is about lining it up and drive shaft. From all the reading I did last night, it looks like if you put the pinion in peralel with T case then you use a standard drive shaft, and if you aim pinion at T case you then use a double cardon CV drive shaft. Either way she needs a new drive shaft, so what is the prefered way to do this. Don't want to weld on the perches, have shaft made up, hook everything up and have the first person look at it and say why did you do it like that? Greg |
Re: 9" to replace 35c help
If she has a tall lift, a CV driveshaft is the way to go since it can better
handle the angles and it'll run smoother. Technically, your descriptions of how to set up the angles are right on. From a practical sense, set the pinion angle 2-3 degrees under that of the CV driveshaft, not pointed straight up the driveshaft towards the t-case. This compensates for the rear axle's axle wrap (the pinion shaft will jump up several degree) during acceleration so the pinion won't point too high under acceleration and cause vibrations. Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "Greg" <greglc84@hotmail.com> wrote in message news:ASSHc.63156$P7.43879@pd7tw3no... > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg > > |
Re: 9" to replace 35c help
If she has a tall lift, a CV driveshaft is the way to go since it can better
handle the angles and it'll run smoother. Technically, your descriptions of how to set up the angles are right on. From a practical sense, set the pinion angle 2-3 degrees under that of the CV driveshaft, not pointed straight up the driveshaft towards the t-case. This compensates for the rear axle's axle wrap (the pinion shaft will jump up several degree) during acceleration so the pinion won't point too high under acceleration and cause vibrations. Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "Greg" <greglc84@hotmail.com> wrote in message news:ASSHc.63156$P7.43879@pd7tw3no... > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg > > |
Re: 9" to replace 35c help
If she has a tall lift, a CV driveshaft is the way to go since it can better
handle the angles and it'll run smoother. Technically, your descriptions of how to set up the angles are right on. From a practical sense, set the pinion angle 2-3 degrees under that of the CV driveshaft, not pointed straight up the driveshaft towards the t-case. This compensates for the rear axle's axle wrap (the pinion shaft will jump up several degree) during acceleration so the pinion won't point too high under acceleration and cause vibrations. Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "Greg" <greglc84@hotmail.com> wrote in message news:ASSHc.63156$P7.43879@pd7tw3no... > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg > > |
Re: 9" to replace 35c help
If she has a tall lift, a CV driveshaft is the way to go since it can better
handle the angles and it'll run smoother. Technically, your descriptions of how to set up the angles are right on. From a practical sense, set the pinion angle 2-3 degrees under that of the CV driveshaft, not pointed straight up the driveshaft towards the t-case. This compensates for the rear axle's axle wrap (the pinion shaft will jump up several degree) during acceleration so the pinion won't point too high under acceleration and cause vibrations. Jerry -- Jerry Bransford PP-ASEL N6TAY See the Geezer Jeep at http://members.cox.net/jerrypb/ "Greg" <greglc84@hotmail.com> wrote in message news:ASSHc.63156$P7.43879@pd7tw3no... > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg > > |
Re: 9" to replace 35c help
All 4X4s should have constant velocity universal joints, and most
do come stock with them, allowing the pinion to be pointed directly at the transfer case yoke: http://www.off-road.com/jeep/tech/convaxle/ford9.html and: http://www.4x4wire.com/jeep/reviews/aasye99/ God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ Greg wrote: > > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg |
Re: 9" to replace 35c help
All 4X4s should have constant velocity universal joints, and most
do come stock with them, allowing the pinion to be pointed directly at the transfer case yoke: http://www.off-road.com/jeep/tech/convaxle/ford9.html and: http://www.4x4wire.com/jeep/reviews/aasye99/ God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ Greg wrote: > > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg |
Re: 9" to replace 35c help
All 4X4s should have constant velocity universal joints, and most
do come stock with them, allowing the pinion to be pointed directly at the transfer case yoke: http://www.off-road.com/jeep/tech/convaxle/ford9.html and: http://www.4x4wire.com/jeep/reviews/aasye99/ God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ Greg wrote: > > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg |
Re: 9" to replace 35c help
All 4X4s should have constant velocity universal joints, and most
do come stock with them, allowing the pinion to be pointed directly at the transfer case yoke: http://www.off-road.com/jeep/tech/convaxle/ford9.html and: http://www.4x4wire.com/jeep/reviews/aasye99/ God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ Greg wrote: > > Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a > ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is > about lining it up and drive shaft. From all the reading I did last night, > it looks like if you put the pinion in peralel with T case then you use a > standard drive shaft, and if you aim pinion at T case you then use a double > cardon CV drive shaft. Either way she needs a new drive shaft, so what is > the prefered way to do this. Don't want to weld on the perches, have shaft > made up, hook everything up and have the first person look at it and say why > did you do it like that? > Greg |
Re: 9" to replace 35c help
"Greg" <greglc84@hotmail.com> wrote in message news:ASSHc.63156$P7.43879@pd7tw3no... : Taking my daughter's 35c out of her 95 YJ this weekend, she is putting a : ford 9" in, and 4.88 gears, and an Advanced Adaptor HD SYE my question is : about lining it up and drive shaft. From all the reading I did last night, : it looks like if you put the pinion in peralel with T case then you use a : standard drive shaft, and if you aim pinion at T case you then use a double : cardon CV drive shaft. Either way she needs a new drive shaft, so what is : the prefered way to do this. Don't want to weld on the perches, have shaft : made up, hook everything up and have the first person look at it and say why : did you do it like that? : Greg : Hi Greg, you're correct about aiming toward the pinion with an SYE setup. To do this on the stock axle, you can use degree shims on the spring perches: http://www.suspensionconnection.com/...con/90012.html But since you are swapping in the 9" you will be doing perch mods. Test fit the axle with the spring perches clamped to the leaf spring. Rotate the axle as necessary and begin welding. This would be a good time to decide if you want to do a spring over axle (SOA) setup for more lift... of coarse you would have to do the front axle as well. P.S. don't forget to relocate your shock perches as well. -Brian |
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