Hey besides being less able to flip up and bind do boomerang style shackles have any other benefit?
Seems to me that they would allow a little bit more droop am I wrong on this?
Also any rule of thumb on how far in front of the spring eye to mount them on the frame?
(Btw this would be for a rear spring setup)

They might be a little longer when extended. Don't get excited about it.
Keeping the shackle on a 90 deg. from the spring is a good place to start.

The kind that have the twist are the kind you want, IMO.

Unless you have a LWB rig, the kind that aren't boomerang shackles are the kind you want, IMO. Haven't seen in person, but have heard of lots of horror stories of trucks doing endos after these shackles unload coming down a hill.

i think he was refering to the "L" shaped boomerang shacles... not revolvers.

as far as i can tell boomerang shacles offer no performance benefit other than allowing your spring to flatten out more before the shacle contacts the hanger/uni-body/or bumper ect... so basically they dont ammount to more droop, but rather a little more stuff...

Boomerang shackles are a good thing, also referred to as 'anti-kickback' shackles. I don't see how they'd give you more droop over another style, but they'll keep the shackle from getting wonked in the wrong direction. You want to keep in mind that the distance from the spring eye bolt, and the bolt that attaches the shackle to it's bracket or the framerail (not sure how your vehicle is setup) and that relative angle are the same as if you were using a straight shackle.

I hope I explained that clearly.




You absolutely DO NOT want 'revolver' shackles. The folding type. They're a deadly accident waiting to happen. These are what all the horror stories are referring to.

Unless you have a LWB rig, the kind that aren't boomerang shackles are the kind you want, IMO. Haven't seen in person, but have heard of lots of horror stories of trucks doing endos after these shackles unload coming down a hill.

EDIT: Damn my computer was slow! Beat me to it.
American, I think you are talking about the revolver shackles, not boomerang shackles. Boomerang shackles are like standard shackles, but the side plates are shaped like a boomerang,and usually have a crossbar of some kind. They can help prevent the shackles flipping overcenter and binding "anti-kick back", the bend can help clear crossmembers, and sometimes a little more suspension travel. Good for swapping longer springs in also, like XJ spings in the rear of a YJ.
Like these:
270926

270925

270929

These are the ones you are referring to:

270927

i always thought the sole reason they were made is to fit around the body mount of a post 85 toyota when doing an SAS

i always thought the sole reason they were made is to fit around the body mount of a post 85 toyota when doing an SAS


this is the applcation i first saw them on as well.

Callen

thats all they are for is to clear body mounts and such.. remember the centerline to the bolt is still a straight line ! so they offer nothing in the form of droop except clearence to things on the frame if it is being blocked

Wow 5 years for a reply :)
Or am I missing something?

Wow 5 years for a reply :)
Or am I missing something?

Hey, better late than never! Wow, I can't imagine what you thought when you saw this thread back:D

So, what did you end up doing?

Hey, better late than never! Wow, I can't imagine what you thought when you saw this thread back:D

So, what did you end up doing?


Well....if his build up was influenced by PBB, it went similar to this.

He got his boomerang shackles, wheeled. Decided to go 1/4 eliptical set up. Wheeled....well, coil overs were the new hotness for PBB, so he got coil overs. He had no use for the shackles, so he sold em to a buddy who was trying to follow his foot steps. While trying to keep up with a full blown, coiled over buggy, his buddy rolled his rig down a hill and turned into a pile of mashed metal. He took it to a scrapyard, and that boomerrang shackle is probably part of a Ford truck frame now.

:flipoff2:

Well....if his build up was influenced by PBB, it went similar to this.

He got his boomerang shackles, wheeled. Decided to go 1/4 eliptical set up. Wheeled....well, coil overs were the new hotness for PBB, so he got coil overs. He had no use for the shackles, so he sold em to a buddy who was trying to follow his foot steps. While trying to keep up with a full blown, coiled over buggy, his buddy rolled his rig down a hill and turned into a pile of mashed metal. He took it to a scrapyard, and that boomerrang shackle is probably part of a Ford truck frame now.

:flipoff2:
:)
Actually made some real long shackle jobs ordered some springs from Alcan to strech the rear about 4" put them on mine and my wifes Jeep then been wheeling them ever since.

Wow 5 years for a reply :)
Or am I missing something?

:laughing: I didn't even notice the first post was from 2001... I guess JR decided he's just dig back into the archives and answer some random threads:D

easy to tell it's an old thread, there is no preview window as you scroll your mouse over the title;)

EDIT: Damn my computer was slow! Beat me to it.
American, I think you are talking about the revolver shackles, not boomerang shackles. Boomerang shackles are like standard shackles, but the side plates are shaped like a boomerang,and usually have a crossbar of some kind. They can help prevent the shackles flipping overcenter and binding "anti-kick back", the bend can help clear crossmembers, and sometimes a little more suspension travel. Good for swapping longer springs in also, like XJ spings in the rear of a YJ.
Like these:
270926

270925

270929

These are the ones you are referring to:

270927Yea, that makes sense. The Boomerang name is because of the shape. I thought it was because they'd "leave" and then "come back"