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73-87 Chevy Shackle Flip


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Old November 10th, 2008, 08:12 AM   #1 (Link to post)
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Post 73-87 Chevy Shackle Flip

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Article Author: Filo
Good*Stock rear suspension shackles. They are good because all of the geometry is already figured out for you; just drive it.
Better*Shackle flip.*
The easiest way to get 4 inches of lift out of the rear of your 73-87 Chevy is to convert the rear to a compression style shackle. To do that you must [...]

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Old June 8th, 2009, 09:31 PM   #2 (Link to post)
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i want to but i dont now how, i would take out my 4in block and do that.
better ride.
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Old June 8th, 2009, 09:40 PM   #3 (Link to post)
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I have always considered shakle lift also...
Not sure how to do it.
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Old June 8th, 2009, 10:03 PM   #4 (Link to post)
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It's not that hard to do. The only real tough part is getting off your rear factory shackle hanger brackets. They're held onto the frame with steel rivets that GM so loved to use all over these older trucks. The easiest way I found to remove them is to cut an X in the head of the rivet and then either use an air hammer or large chisel to smack the heads clean off.
The rear shackle hanger bracket is replaced with an aftermarket bracket, DIY4X, Offroad Design, SKY Offroad and Twizted Engineering all make shackle flip kits. Basically your rear shackle will go from being pointed up towards the body(tension style shackle) and wind up pointed down away from the body(compression style shackle). Some of the companies use the bracket to achieve the specific amount of lift and other use a combination of bracket & shackle length to get the lift.
It is usually easier to do a shackle flip with the gas tank out for access to inside of the framerails where the fasteners will go, plus having it out is nice when you're throwing sparks all over the place.
If the rear of your truck is sagging with the factory springs now, you will probably be a little low in the rear still after a shackle flip install. Maybe plan on adding a 1" zero rate style block to leaf spring pack to get a level sitting truck.

Here's what it looks like before shackle flip


And after...
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Last edited by 5280k5; June 8th, 2009 at 10:04 PM.
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Old June 8th, 2009, 10:11 PM   #5 (Link to post)
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Is that a 6 inch shakle flip because of the bracket?
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Old June 8th, 2009, 10:18 PM   #6 (Link to post)
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can you just modifiy your stock braket so you can flip it or do you have to start all over with a new braket.
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Old June 8th, 2009, 10:30 PM   #7 (Link to post)
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Quote:
Originally Posted by stetzer77 View Post
Is that a 6 inch shakle flip because of the bracket?
That is Offroad Designs 4" flip. They only make a 4" or a 2.5".

Here's some links:

ORD Shackle Flip Kit for '67-up fullsize GM Chevy 4x4

Shackle Flip Kit - GM 88-98 Trucks - 4" Lift

DIY4X: Catering to those who enjoy doing it themselves.

73-88 Chevy and GMC 1/2-3/4 ton Rear Shackle Flip - Sky's Off-road Design
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Old June 8th, 2009, 10:33 PM   #8 (Link to post)
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Quote:
Originally Posted by 78blazer454 View Post
can you just modifiy your stock braket so you can flip it or do you have to start all over with a new braket.
Yes, there's several guys that have done this over on CK5. The factory brackets are not as beefy as the aftermarket stuff but heck they're plenty strong still. If you use the factory hangers you'll probably just need to play around with the shackle length a little to get the right amount of lift & proper shackle angle.
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Old June 8th, 2009, 10:42 PM   #9 (Link to post)
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Okay i see now, that sounds good.
I plan on investing in that sometime in the near future!
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Old June 8th, 2009, 10:46 PM   #10 (Link to post)
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i like the kits but not the price, i will probly fab up my own. me and stetzer77 are probly going to do it together while its summer, before school starts. my uncle will help me he can fab anything.
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