Maryland Cherokee Club
CF Veteran
Join Date: Jan 2012
Location: Baltimore, MD
Posts: 8,272
Likes: 0
Received 1 Like
on
1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by kuzican
what he said. anything I know I've learned from this site. there was a thread somewhere about this topic that i read.
CF Veteran
Join Date: Mar 2009
Location: Berea, OH
Posts: 7,996
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
AAAAAAAAAAAHHHHHHHHHHHH....
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
CF Veteran
Join Date: Feb 2012
Location: Forest Hill, Maryland
Posts: 6,468
Likes: 0
Received 18 Likes
on
14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L
AAAAAAAAAAAHHHHHHHHHHHH....
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
CF Veteran
Join Date: Mar 2009
Location: Berea, OH
Posts: 7,996
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
CF Veteran
Join Date: Feb 2012
Location: Forest Hill, Maryland
Posts: 6,468
Likes: 0
Received 18 Likes
on
14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L
Senior Member
Join Date: Jan 2012
Location: Baltimore
Posts: 599
Likes: 0
Received 0 Likes
on
0 Posts
Year: 96'
Model: Cherokee
Engine: 4.0L
Originally Posted by zwhiz
What is this college park meet you speak of?
CF Veteran
Join Date: Nov 2010
Location: glen burnie md
Posts: 5,151
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
And you need to get a double cardan driveshaft (what the front shaft is) because you are eliminating the slip yoke on the output shaft. You have to have a slip somewhere, because the distance between the output shaft of the transfer case and the nose of the differential changes as the suspension cycles.
Once again, anyone know what the fūck this is?
Once again, anyone know what the fūck this is?
CF Veteran
Join Date: Jan 2012
Location: Baltimore, MD
Posts: 8,272
Likes: 0
Received 1 Like
on
1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by jimmy21669
AAAAAAAAAAAHHHHHHHHHHHH....
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
Ok....YES, you CAN install the SYE in advance.
When you do the SYE you will be installing a front driveshaft in the rear which has the slip built in. This shaft will have at LEAST 6" of slip in it.
Think of it as parts of a triangle. If you lift the Jeep, one side get's longer and by Pythagorean's theorem, at least one other side has to get longer to compensate. Since the 3rd angle is the center distance on the body to the axle and cannot change, the driveshaft has to get longer. Unless the driveshaft is already stretched to it's limits, you will be fine. The driveshaft lengthens by a small portion when compared to the lift height. the difference in rear driveshaft length between no lift and 5" of lift is 1", well within the 6" slip tolerance, especially if you advance compensated for it. And unless you plan on lifting over 15" you will be fine. This is why guys who have a 3" lift and have an SYE do not need a new driveshaft when changing to a 6" lift. Same concept.
Hope this helps the masses.
For help on the Pythagorean Theorem, see here:
http://www.algebra.com/calculators/g...ythagorean.mpl
Sorry, I am a suspension math and geometry geek.
Moderator of Jeeps
Join Date: Jul 2011
Location: Frederick, MD from Cleveland, OH
Posts: 21,029
Likes: 0
Received 3 Likes
on
3 Posts
Year: 1993 YJ Wrangler
Engine: 4.0 I6
CF Veteran
Join Date: Jan 2012
Location: Baltimore, MD
Posts: 8,272
Likes: 0
Received 1 Like
on
1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by NewKindOfClown
The rear driveshaft is a Slip Yoke style. The front is a CV. You want to eliminate the slip yoke in the rear (with an SYE kit) so you can replace it with a CV style and use a front driveshaft.
CF Veteran
Join Date: Mar 2009
Location: Berea, OH
Posts: 7,996
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Ding Ding Ding....tell him what he's won, Bob!
LOL....yes. You are elimintaing the slip yoke from the transfer case and adding it to the driveshaft.
GOOGLE....there is more information on this that you will EVER be able to digest.
CF Veteran
Join Date: Jan 2012
Location: Baltimore, MD
Posts: 8,272
Likes: 0
Received 1 Like
on
1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Originally Posted by jimmy21669
Ding Ding Ding....tell him what he's won, Bob!
LOL....yes. You are elimintaing the slip yoke from the transfer case and adding it to the driveshaft.
GOOGLE....there is more information on this that you will EVER be able to digest.
Seasoned Member
Join Date: Mar 2012
Location: Glen Burnie, MD
Posts: 411
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
I had enough time today to do the front bar pin eliminators. The bushings on both sides were slipping out of the shock eye. I used Energy Suspension bushings to replace the old ones. They were in stock at pep boys. I was lucky enough to have all the tools needed. It took me about an hour.
CF Veteran
Join Date: Mar 2009
Location: Berea, OH
Posts: 7,996
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
50/50. Will more than likely need new u-joints from a JY. Second, if you go to a pull it yourself yard, they throw the trucks around on their belly and you will often get slightly bent shafts that the naked eye does not detect, but the shimmy in your *** end will.
However, if you go to a yard where THEY pull it, it should come with a warranty of some sort to exchange, at least, for 30 days.
You will need to measure after the SYE is installed to know what length you will need. That measurement will be the half slip measurement of the DS needed (half collapsed/extended).