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ORD Rear SuperShackles

We have these:

So you don't end up with this:

After seeing some thrashed rear shackles, we decided a beefier system was in order.  These are folded and fully welded 1/4" steel with a .250 wall tube.  The back gusset is extended down the spring mounting "ears" to keep them from bending.  We also build them in different lengths for custom suspension applications. 

The "short" length is 4.5" center to center which is the same as a '88-'98 GM and 1/2" longer than a '67-'87 GM trucks.
 

Part Number
Shackle length, eye to eye
Inside width
Notes
Finish
Price
GU38015-A 4-1/2" 3"
(OE Chevy rear spring/bushing width)
Direct replacement for '67-'98 GM trucks

Does not fit '69-'72 K5 Blazers unless they have a shackle flip installed

Fully welded 1/4" steel plate

Bare steel $130/pair
with bushings, sleeves, and bolts
Buy Now
GU38016-A 6" 3"
(OE Chevy rear spring/bushing width)
  • Longer than stock
     
  • Without a shackle flip, these will lower the truck 1"
     
  • With a shackle flip, these will lift it an additional inch
     
  • Not recommended for use with a 4" shackle flip
     
  • Longer shackles are essential for long travel springs and taller lift springs with lots of arch, see notes here

  • Fully welded 1/4" steel plate
Bare steel $130/pair
with bushings, sleeves and bolts
Buy Now


Our greasable bushing setups use a greasable bolt with a zerk and a special bushing with grease cavities in it.  These bolts are higher quality than grade 8 and the hole makes virtually no difference in strength.  A greasable bolt and bushing setup will flex and ride better and the bushing will last longer!

Click here to get our Super Shackles with
greasable bushings and bolts for your entire rear suspension!


Notable spring bushing information (these are general guidelines, it's best to measure)
:

52" rear springs (came in the rear of 1/2 ton GM trucks from '67-87 and some suburbans) generally use 1.5" bushings at each spring eye.  The '88-91 Blazers and Suburbans could have 1.5" or metric spring eyes (the '88-98 spring bushings, ~1.7").

56" rear springs (typically found in '73-87 3/4 and 1 ton GM trucks and some Suburbans) use a 1.75" bushing at one end and a 1.5" bushing at the other.

64" springs from an '88-98 GM use a metric spring bushing, roughly 1.7".

8" Skyjacker and Superlift rear springs use a unique bushing, kits for those are below.

 

  Part Number Description Price  
         
GU38002-A4.5

4.5" Super Shackle with greasable poly bushings for both ends of both rear springs

1.5" spring eyes

$190 Buy Now
GU38002-B4.5

4.5" Super Shackle with greasable poly bushings for both ends of both rear springs

1.5" and 1.75" spring eyes

$190 Buy Now
GU38002-C4.5

 

4.5" Super Shackle with greasable poly bushings for both ends of both rear springs

1.75" spring eyes

$190 Buy Now
GU38002-IFS4.5 4.5" Super Shackle with greasable poly bushings for both ends of both rear springs

88-98 trucks (64")
$190 Buy Now
         
GU38002-A6

6" Super Shackle with greasable poly bushings for both ends of both rear springs

1.5" spring eyes at each end

$190 Buy Now
GU38002-B6 6" Super Shackle with greasable poly bushings for both ends of both rear springs

1.5" and 1.75" spring eyes
$190 Buy Now
GU38002-C6 6" Super Shackle with greasable poly bushings for both ends of both rear springs

1.75" spring eyes at each end
$190 Buy Now
GU38002-IFS6

6" Super Shackle with greasable poly bushings for both ends of both rear springs

Metric bushings for 88-98 GM rear springs (64")

$190 Buy Now
GU38004-6 6" Super Shackle with greasable poly bushings for both ends of both rear springs

For #01-322 8" rear Superlift springs
$205 Buy Now

These shackle works on any GM or other vehicle with 2.5" wide springs and spring hangers in either tension or compression shackle applications.

Install these HD rear shackles with the open side to the front to prevent contact with the main leaf of the spring.

With deeper arch springs (6" or more lift) use the longer shackles and a shorter shackle flip.  An example would be a 12" total lift would use the 2.5" shackle flip, a 6" HD rear shackle and the 8" lift spring.  The longer shackle length helps keep the shackle from inverting to the front or back.  There's nothing wrong with the 2.5" flip / 6" HD shackle combo for shorter lifts either but it's essential for taller springs.

Using stock length shackles with deep arch springs and a shackle flip can allow the shackles to flip the wrong direction, the fix is our longer 6" shackles.  The longer shackles keep the shackle from flipping forward and allow the spring to compress and stretch out naturally under the weight of the truck.

Choose the category you would like more information on.

Doubler™ Dual Transfer Case
Swaybar Correction/Disconnect™ Kit
Shackle Flip™ Kit for ‘67-up GM trucks
Bolt-In Steering Box Brace Kit
1" Body Lift Kit
Competition Style Motor Mounts
Heavy Duty Front Shackles
Chrome Moly Front Axle Shafts
Drivetrain Upgrades
Blazer Soft Tops

Greasable Rear Suspension Bushings
Swaybar Bushing Kits
Body Mounts
Transfer case mounts
Spring Bushings
Competition Style Bumpstops
Bushing Assemblies
Tuff Country Suspension
Coming Soon...