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driveline angles 91 wrangler SOA
I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The
drive shaft falls out at full extension. My question is: 1.) If I stay with my factory style drive shaft (non CV) why does the angles in at the transfer case and the rear end have to be the same? I'm 99% certain that I have seen instance where the rear end angle is near zero and the transfer case angle takes up all the angle. I can pitch the rear end as much as needed to obtain near 0 angle, because I still need to weld in my spring perches. 2.) If I can find the money for the CV style does any one have a good lead on a place that I can get the slip Yoke eliminator kit and shaft? Thanks for your time, Tim |
Re: driveline angles 91 wrangler SOA
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/1 a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/1 a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/1 a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/1 a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA (corrected response)
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/- a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA (corrected response)
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/- a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA (corrected response)
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/- a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA (corrected response)
With the factory driveshaft, the transfer case output shaft angle and rear
axle's pinion shaft angle must be exactly the same, +/- a degree or so. In other words, they must be parallel to each other. They must be the same or they will accelerate in and out of position at different speeds from each other which is what causes driveshaft vibration which ultimately causes failed seals and bearings in the drivetrain. Only when the driveshaft is an aftermarket CV driveshaft can the rear pinion shaft be raised up... it needs to be pointed directly up and in line with the driveshaft. Technically, with a leaf-spring vehicle, the rear pinion angle should be 2-3 degrees under that of the driveshaft to counteract the effects of axlewrap. :) Jerry -- -- Jerry Bransford To email, remove 'me' from my email address N6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Tim Vice" <timothy.vice@washburn.edu> wrote in message news:O7Igc.10417$DM5.171@okepread04... > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim > > |
Re: driveline angles 91 wrangler SOA
Hi Tim,
With the use of Constant Velocity Universal Joints at the Transfer end of the driveshaft you may aim the pinion directly at the transfer yoke: http://www.4xshaft.com/driveline101.html Of course, this is the time upgrade the yoke as your driveshaft won't fit any longer: http://www.4x4wire.com/jeep/reviews/aasye99/ Replace the shaft don't weaken yours. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ Tim Vice wrote: > > I am putting in a Spring Over Axle kit and add a leaf on my wrangler. The > drive shaft falls out at full extension. My question is: > 1.) If I stay with my factory style drive shaft (non CV) why does the > angles in at the transfer case and the rear end have to be the same? I'm > 99% certain that I have seen instance where the rear end angle is near zero > and the transfer case angle takes up all the angle. I can pitch the rear > end as much as needed to obtain near 0 angle, because I still need to weld > in my spring perches. > > 2.) If I can find the money for the CV style does any one have a good > lead on a place that I can get the slip Yoke eliminator kit and shaft? > > Thanks for your time, > Tim |
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