Offroad Tech Discussion pertaining to additions or questions which improve off-road ability, recovery and safety, such as suspension, body lifts, lockers etc
Sponsored by:
Sponsored by:

1990 4runner upper control arm links

Thread Tools
 
Search this Thread
 
Old Nov 2, 2009 | 11:57 AM
  #1  
1990IFS's Avatar
Thread Starter
Registered User
 
Joined: Nov 2009
Posts: 16
Likes: 0
1990 4runner upper control arm links

i have a 4" lifted 4runner coil springs in rear. i need to make adjustable upper links. The lift kit gave me relocation brackets to raise the upper links. should i not use the brackets? how long should the tubing be before the end links are in
Attached Thumbnails 1990 4runner upper control arm links-sspx0046.jpg  
Reply
Old Nov 2, 2009 | 06:11 PM
  #2  
tc's Avatar
tc
Contributing Member
 
Joined: Nov 2005
Posts: 8,875
Likes: 3
From: Longmont, CO
Huh? Raising the axle end of the uppers is going to change the way the suspension works pretty dramatically. Got any pics of these brackets? How much does it raise them?

Why do you think you need to make adjustable links? (ie - what is wrong) Admittedly, the uppers are a weak point in the stock design IMHO.

Here's the link to my reworking of the rear 4 link:
https://www.yotatech.com/forums/f116...thread-153382/

What is your fabrication ability? Can you weld well enough to trust your life on it?
Reply
Old Nov 2, 2009 | 08:20 PM
  #3  
1990IFS's Avatar
Thread Starter
Registered User
 
Joined: Nov 2009
Posts: 16
Likes: 0
i need to tilt the axle back a little because of driveline vibration
Reply
Old Nov 2, 2009 | 08:22 PM
  #4  
1990IFS's Avatar
Thread Starter
Registered User
 
Joined: Nov 2009
Posts: 16
Likes: 0
allpro offroad used to sell what i am looking for but they have discontinued them
Reply
Old Nov 3, 2009 | 07:33 AM
  #5  
4rnr's Avatar
Registered User
20 Year Member
 
Joined: Sep 2004
Posts: 1,515
Likes: 0
From: Plainfield, IL
your coils/coil-buckets wont be happy, and you may bind your shocks in more ways than one. You may also bind the Panhard. Basically...bad idea.
Reply
Old Nov 3, 2009 | 07:36 PM
  #6  
tc's Avatar
tc
Contributing Member
 
Joined: Nov 2005
Posts: 8,875
Likes: 3
From: Longmont, CO
My guess is that you actually need to rotate it DOWN (ie - need longer uppers). The flanges at the tcase and pinion ends need to be EXACTLY parallel so that the vibes induced by the ujoint on one end are cancelled by the one on the other end.

The other option is to go to a double cardan driveshaft and point the diff directly towards the tcase output, but as 4rnr said, this will cause problems.
Reply
Old Nov 4, 2009 | 07:02 AM
  #7  
4rnr's Avatar
Registered User
20 Year Member
 
Joined: Sep 2004
Posts: 1,515
Likes: 0
From: Plainfield, IL
Originally Posted by tc
My guess is that you actually need to rotate it DOWN (ie - need longer uppers). The flanges at the tcase and pinion ends need to be EXACTLY parallel so that the vibes induced by the ujoint on one end are cancelled by the one on the other end.

The other option is to go to a double cardan driveshaft and point the diff directly towards the tcase output, but as 4rnr said, this will cause problems.
Shorter uppers will rotate the axle "down".
Reply
Old Nov 4, 2009 | 02:06 PM
  #8  
tc's Avatar
tc
Contributing Member
 
Joined: Nov 2005
Posts: 8,875
Likes: 3
From: Longmont, CO
Oops - yes, you are correct.
Reply
Old Nov 4, 2009 | 07:52 PM
  #9  
4rnr's Avatar
Registered User
20 Year Member
 
Joined: Sep 2004
Posts: 1,515
Likes: 0
From: Plainfield, IL
i knew what you meant
Reply
Old Oct 23, 2011 | 01:15 PM
  #10  
Pritchard's Avatar
Registered User
 
Joined: Feb 2011
Posts: 39
Likes: 0
From: Phoenix
did you ever find the links you need? Im looking for some too...about 1 inch longer than stock. if you didnt use the control arm relocation brackets I would buy them from you. let me know who sells them or if you want to sell your brackets
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bigjstang
86-95 Trucks & 4Runners
21
Jun 2, 2025 03:56 PM
MMA_Alex
86-95 Trucks & 4Runners (Build-Up Section)
25
Apr 18, 2017 05:07 AM
lledwod
Items Wanted
1
Aug 30, 2016 01:03 PM
coryc85
Misc Stuff (Vehicle Related)
6
Sep 9, 2015 06:24 AM
ptb12
84-85 Trucks & 4Runners
1
Jul 5, 2015 01:49 PM




All times are GMT -8. The time now is 06:31 AM.