Caster and Shackle Lifts - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 09-04-2001, 04:10 PM
Posts: n/a
Caster and Shackle Lifts

There is a fellow here at work with a 92 wrangler. He is planning on installing a shackle lift. Most of the shackle lifts available are right about 1.25". Is this because any more would have negative effects on the caster and the pinion angles. What is the standard caster angle for the wranglers. For the tires to track properly, doesn't the lower joint in the knuckle need to be behind the top?

Cage Up, Wheels Down
All my Jeeps are in pieces! Except for one!!
Sponsored Links
post #2 of (permalink) Old 09-04-2001, 05:49 PM
Join Date: Apr 2001
Posts: 502
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Caster and Shackle Lifts

yes the lower ball joint needs to be infront of the upper ball (I think it's called negative caster and I think it only needs to be a few degrees correct me if I'm wrong)

popazeus is offline  
post #3 of (permalink) Old 09-05-2001, 12:43 AM
Can't Get Enough
jeeperjohn's Avatar
Join Date: Sep 1999
Location: The Plywood State.... Florida
Posts: 1,340
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Caster and Shackle Lifts

Lower ball joint in front of upper is positive caster. My manual only goes to 994, but from 1987-94 it calls for 7 1/2 to 8 1/2 degree positive manual trans, 6 to 7 degree positive for autos. With the preferred settings being 8 degrees positive for manuals and 6 1/2 positive for autos. Adding length to the shackels will reduce the amount of caster.

They that can give up essential
liberty to obtain a little temporary
safety deserve neither liberty nor safety.

jeeperjohn is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome