Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

8.25 centre line

Thread Tools
 
Search this Thread
 
Old 05-15-2013, 06:05 PM
  #1  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default 8.25 centre line

where exactly is the center line of an 8.25? how do you experts choose where it is?
I've cut off my spring perches and now want to weld on my new anti-wrap perches so my pinion is about 4 degrees up.
Do I level the yoke then turn the housing up 4 degrees and then put my perches level?
I'm probably over thinking this aren't I?
Old 05-17-2013, 12:47 PM
  #2  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

No one?
I've seen Lots of picture of guys doing it just not how they figured out the proper angle. I know you all just didn't eyeball it.
Old 05-17-2013, 03:00 PM
  #3  
Seasoned Member
 
wrapstar's Avatar
 
Join Date: Oct 2012
Location: spring grove il
Posts: 378
Likes: 0
Received 1 Like on 1 Post
Year: 2001
Model: Cherokee
Default

You mount for axle under the Jeep loosely measure from the outside of the perch to the outside of the axle and make it even then snug the u bolts put the tires on put it on the ground adjust pinion angle with a jack and tack weld the perches then pull the axle out and weld it all up
Old 05-17-2013, 03:14 PM
  #4  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by wrapstar
You mount your axle under the Jeep loosely measure from the outside of the perch to the outside of the axle and make it even then snug the u bolts put the tires on put it on the ground adjust pinion angle with a jack and tack weld the perches then pull the axle out and weld it all up
I know how to do it that way but I was kinda hoping to have it finished, painted, and everything else done first.

I want to have it so I take old axle out and put new axle in and take it for a test drive in under 2 hours.
I see pictures of the welded up and painted axle on jack stands all the time.
My rig is a DD. I have to take the axle to the welders. I don't have a shop.
I did it this way so I wouldn't have to do it that way.
I seriously can't believe there are not 20 answers to this thread but some guy buying a CAI from the wreckers and saying it's the best mod anyone can buy gets 3 pages.
Old 05-17-2013, 03:21 PM
  #5  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

Originally Posted by wrapstar
You mount for axle under the Jeep loosely measure from the outside of the perch to the outside of the axle and make it even then snug the u bolts put the tires on put it on the ground adjust pinion angle with a jack and tack weld the perches then pull the axle out and weld it all up
Then do this really really fast...
Old 05-17-2013, 03:23 PM
  #6  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by freegdr
Then do this really really fast...
Old 05-17-2013, 03:23 PM
  #7  
Seasoned Member
 
wrapstar's Avatar
 
Join Date: Oct 2012
Location: spring grove il
Posts: 378
Likes: 0
Received 1 Like on 1 Post
Year: 2001
Model: Cherokee
Default

Those were the instructions per iro's 8.8 install kit. Doing it all before hand is not an easy task
Old 05-17-2013, 03:26 PM
  #8  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by wrapstar
Those were the instructions per iro's 8.8 install kit. Doing it all before hand is not an easy task
Huh? what 8.8? what kit?
And actually it is. There are guys that do it all the time. just need a tape measure and a degree finder.
I just want to know what they use as a center line to "Degree" the axle.

As for shimming it. The shims cost the same as the anti wrap perches. Actually more with shipping. I was going to move the shock mounts anyways. After you twist the axle the shocks get close to binding on the left side. They also twist the rubber isolators. Move them up out of the way of obstacles and eliminate twist. Whats 4 more weld beads? I'm a little old school. Do it right do it once.

Last edited by Jamie57; 05-17-2013 at 03:37 PM.
Old 05-17-2013, 03:27 PM
  #9  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

Originally Posted by Jamie57
Lol...why did you just not shim it what im wondering?
Old 05-17-2013, 03:29 PM
  #10  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

I would say using a degree wheel on yoke would get you 0 degrees then raise 4 degrees and weld .Knowing what degree it was to begin with would help...then add 4....
Attached Thumbnails 8.25 centre line-image_17440.jpg  

Last edited by freegdr; 05-17-2013 at 03:35 PM.
Old 05-17-2013, 03:40 PM
  #11  
Seasoned Member
 
wrapstar's Avatar
 
Join Date: Oct 2012
Location: spring grove il
Posts: 378
Likes: 0
Received 1 Like on 1 Post
Year: 2001
Model: Cherokee
Default

Originally Posted by Jamie57

Huh? what 8.8? what kit?
And actually it is. There are guys that do it all the time.
I just want to know what they use as a center line to "Degree" the axle.
I just did an 8.8 swap thats what my kit instructions were. If all you need is pinion angle set the pinion at what ever you need it at and zero out the perches
Old 05-17-2013, 03:42 PM
  #12  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by freegdr
I would say using a degree wheel on yoke would get you 0 degrees then raise 4 degrees and weld .Knowing what degree it was to begin with would help...then add 4....
I've got that tool.
I use it alot in carpentry actually.
I'm just going to have to assume the yoke is 0° and then rotate it on the stands to 4° then level the perches and weld.
HOWEVER looking under the XJ now the yoke is NOT level with the ground.
This is why I want someone who has done this before to chime in.
Old 05-17-2013, 03:45 PM
  #13  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by wrapstar
I just did an 8.8 swap thats what my kit instructions were. If all you need is pinion angle set the pinion at what ever you need it at and zero out the perches
Ok I was wondering how the 8.8 got in here and instructions.
Old 05-17-2013, 03:47 PM
  #14  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

Are you upgradeing here from a 35...
Old 05-17-2013, 04:33 PM
  #15  
CF Veteran
Thread Starter
 
Jamie57's Avatar
 
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes on 10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by freegdr
Are you upgradeing here from a 35...
No. I just got a smokin deal (Back in November last year) on an 8.25 with 4:11s and an Eaton Detroit LSD in it. Spent the winter cleaning it up getting the perches and the shock mounts and grafting on the Liberty disc brakes I got for it. All cleaned up and ready to go on vehicle after I weld on the perches, shock mounts and fresh paint.


Quick Reply: 8.25 centre line



All times are GMT -5. The time now is 04:22 PM.