Shackle angles - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > General Tech > General 4x4 Discussion
Notices

Reply
 
Share LinkBack Thread Tools Display Modes
Old 02-16-2002, 06:23 PM   #1 (permalink)
 
Join Date: Jan 2002
Member # 9487
Posts: 166
Question Shackle angles

I searched and didn't find much of a discussion about shackle angles. What type of an angle are most rigs running. We are in the process of a SOA on a CJ-5 with wrangler leaves and have the front hangers all welded up. I measured the arch of the spring center to center and subtracted 3/4". Hopefully with the wieght of the body and motor, the spring eye (front end of jeep, without schackle reversal) will be about a 1/2" to 3/4" forward (6 degrees or so). This is with a 6" shackle center to center. We haven't done the rear yet so hopefully this brings up some discussion! The farther the schackle angle is forward the more droop correct? How far forward is TOO far or Rearward when we get to that tomorrow?
MillerMan is offline   Reply With Quote Quick reply to this message
Old 02-16-2002, 08:09 PM   #2 (permalink)
Registered User
 
Join Date: Feb 2000
Member # 116
Location: Sonora, CA
Posts: 2,010
20 degrees from vertical.
__________________
"The problem with socialism is that you eventually run out of other people's money." - M. Thatcher
SonoraBob is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 02-17-2002, 02:55 AM   #3 (permalink)
Registered User
 
Join Date: Dec 2000
Member # 2560
Location: Portland, Oregon
Posts: 1,082
Are these stock Wrangler springs? These springs are really flat so I would want a shackle angle at about 30 to 35 degrees. Just remeber, if you have your shackle angle more than 35 degrees or less than 30 degrees then your Jeep will roll and catch on fire the first time you take it out of your driveway (but you will get thrown out of the Jeep and onto a soft patch of grass on the side of the road).

__________________
Chad
liveaxle is offline   Reply With Quote Quick reply to this message
 
Old 02-17-2002, 02:02 PM   #4 (permalink)
 
Join Date: Feb 2000
Member # 62
Posts: 4,036
You just want the shackle to rest in the middle of its its throw, from maximum stuff to max droop. I like to use long shackles, 6" center to center aint bad, because they let you get more travel without worrying about the shackle being an issue.
NE-RokToy is offline   Reply With Quote Quick reply to this message
Old 02-17-2002, 08:04 PM   #5 (permalink)
Registered User
 
TNToy's Avatar
 
Join Date: Jul 2001
Member # 5776
Location: Memphis, TN
Posts: 12,994
A shallow shackle angle (i.e. 10-15 degrees) will make for a stiffer ride, and increased load carrying. You will also sacrifice some droop - because once the shackle has swung in toward the axle, the spring will now be under tension between the shackle and the hanger at the other end - making it much harder for the spring to droop.

A steeper shackle angle (i.e. 30-45 degrees) Will give you a smoother ride, but decrease your load caryying capacity. It will give you more droop because the shackle has further to swing downward, but it also has less compression, because the shackle can only swing back so far until it hits the frame.

Most CJ/YJ rigs I see have near-vertical shackle angles - especially those with lift shackles and stock springs. My Toy has a 45* rear angle, and I'm going to do my best to replicate that with the SAS on the front in two weeks. It makes sense to me, since leaf-sprung rigs usually have much more droop than compression, and the smoother ride quality might be nice. It'll make up for the TSLs
TNToy is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pirate4x4.Com : 4x4 and Off-Road Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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



All times are GMT -7. The time now is 07:04 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.