Author Topic: 1986 4Runner rear suspension help  (Read 562 times)

0 Members and 1 Guest are viewing this topic.

toy7521

  • Offline Rock Crawl'n
  • **
  • Turtle Points: 0
  • Posts: 43
  • Member since Dec '05
  • Crawling with Marlin
1986 4Runner rear suspension help
« on: Sep 03, 2018, 08:46:42 AM »
I bought a 1986 4Runner that was already lifted and the rear is not setup properly. My question is where should the rear spring hanger be welded so the shackle angle is correct because it is not right at all.

Snowtoy

  • Offline The 2K Group
  • ***
  • Turtle Points: 720
  • Male Posts: 2,331
  • Member since Sep '03
Re: 1986 4Runner rear suspension help
« Reply #1 on: Sep 03, 2018, 11:25:01 AM »
The static position should be about the angle of the arrow, so when the wheel moves up into the wheel, well the shackle moves up towards the frame, and when the wheel travels down, the shackle ends up the the position it is in now.   It looks like the previous owner used the wrong springs.

« Last Edit: Sep 04, 2018, 02:50:57 PM by Snowtoy »
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

toy7521 [OP]

  • Offline Rock Crawl'n
  • **
  • Turtle Points: 0
  • Posts: 43
  • Member since Dec '05
  • Crawling with Marlin
Re: 1986 4Runner rear suspension help
« Reply #2 on: Sep 04, 2018, 10:31:00 AM »
I think the previous owner wanted to get it as high as possible. The spring hanger was removed and welded on the 1 square piece above it. Supposed to be 5.5 lift springs front and rear.

Snowtoy

  • Offline The 2K Group
  • ***
  • Turtle Points: 720
  • Male Posts: 2,331
  • Member since Sep '03
Re: 1986 4Runner rear suspension help
« Reply #3 on: Sep 04, 2018, 03:14:00 PM »
Missed that the first time, did he do the same to the front, or just the rear?

Did the previous owner say he put 64" Chevy springs on it, the spring hanger should be forward of the body mount.



If welds are good on the 1" tube section, and the springs are longer, you could get a new main leaf made that is the additional length needed to allow the spring eye to move backwards and up when the axle move upwards.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

toyodaaddict

  • Offline 4WD Legend
  • *****
  • Turtle Points: 408
  • Male Posts: 824
  • Member since Sep '08
Re: 1986 4Runner rear suspension help
« Reply #4 on: Sep 04, 2018, 04:46:46 PM »
I would get rid of the spacer and move the shackle hanger forward as needed to correct the angle. I think the rear shackles on all my toys are kicked back roughly 35 degrees from vertical, like Snowtoy's pic.   Those aren't chevy's, they look like a TG or Allpro style spring to me. I'm guessing the PO just moved the hanger to far back when installing the longer springs. I want to see the rest of the truck.
80 shortbed-22re,w56,Marlin 23 spline dual cases,HighAngle drivelines,RUF/63"chevy's,35''mtr's,85 front axle,30 spline Longfields, Allpro highsteer.87 rear axle,5.29 gears,rear spool,BudBuilt cm, marlin HD clutch,ramsey 8000 winch. 
     Also 84 toy DD 22R 4.88s,33'' toyo mt'z, marlin clutch,4inch lift/63's, HA drivelines.

toy7521 [OP]

  • Offline Rock Crawl'n
  • **
  • Turtle Points: 0
  • Posts: 43
  • Member since Dec '05
  • Crawling with Marlin
Re: 1986 4Runner rear suspension help
« Reply #5 on: Sep 04, 2018, 05:18:12 PM »
I think it is a TG 5.5. Here is the rest of the truck when I picked it up Saturday.

Slabzilla

  • Offline Crawler Guru
  • ****
  • Turtle Points: 1083
  • Male Posts: 415
  • Member since Dec '13
  • Crawling with Marlin
Re: 1986 4Runner rear suspension help
« Reply #6 on: Sep 04, 2018, 05:47:28 PM »
That thing is set up for swamp boggin', way too high and that rear bushing is shot in the spring eye, look at how the bolt is not centered in the eye.  Lose the spacer, move the hanger forward and follow the above suggestions for placement, you'll be a lot happier and safer.  Looks like nice "bones" though.   :thumbs:
'85 Xtra-cab, 4.5" Downey Off-Road lift, 12-15 KM2's on American Racing Baja's, 4.10's, 4.7's, Downey Off-Road CAI, Marlin rear bumper & sliders

toy7521 [OP]

  • Offline Rock Crawl'n
  • **
  • Turtle Points: 0
  • Posts: 43
  • Member since Dec '05
  • Crawling with Marlin
Re: 1986 4Runner rear suspension help
« Reply #7 on: Sep 04, 2018, 06:47:39 PM »
Oh I know it is way too high and there is issues with the bushings. Ordered new shackle hangers, all new bushings for all the springs, and a long rounded U-bolt for front U-bolt flip kit that was already installed. Thanks for the help everyone.

Snowtoy

  • Offline The 2K Group
  • ***
  • Turtle Points: 720
  • Male Posts: 2,331
  • Member since Sep '03
Re: 1986 4Runner rear suspension help
« Reply #8 on: Sep 04, 2018, 09:57:31 PM »
Getting rid of the body lift will drop it another 3".
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

 
 
 
 
 

Related Topics

21 Replies
4932 Views
Last post Jul 13, 2005, 07:13:07 PM
by coconut
4 Replies
1808 Views
Last post Dec 21, 2005, 12:15:25 PM
by robinhood4x4
5 Replies
2249 Views
Last post Dec 09, 2006, 09:31:16 PM
by Six-Pack
37 Replies
9640 Views
Last post Feb 14, 2012, 04:34:09 AM
by gdunkle
2 Replies
711 Views
Last post Apr 21, 2017, 08:14:01 PM
by Charles4x4