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BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? #1041265
07/27/11 10:12 AM
07/27/11 10:12 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Can I get some "Real World" opinions...from the actual experience of correcting a "neautral" angle(straight up and down)to a "corrected" angle of 30 degrees forward(top of shackle)? I'm VERY curious as to the difference it made in the 60' times! I am talking about Super Stock springs. My angle is at this position because I'm using the 002/003 A-Body springs on my '69' GTX....and apparently the rear attaching point has to be moved forward 1-1/1/2" Thanks in advance for your information! Randy B.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041266
07/27/11 10:47 AM
07/27/11 10:47 AM
Joined: Jan 2003
Posts: 3,871
Smyrna, South Carolina
STEFF Offline
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Smyrna, South Carolina
You will pick up .50 sec. in your 60'.......is that what you want to hear? Sorry Randy, but you already know that it should improve your 60' issues about a tenth or so and it seems all the info you received, so far isn't good enuff. Get the car fixed go run it. Its the best way to learn.

Last edited by STEFF; 07/27/11 10:50 AM.
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041267
07/27/11 10:49 AM
07/27/11 10:49 AM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
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Akron, Ohio U.S.A.
Randy, I was reading your other thread last night and have to agree with those that suggested correcting your rear shackle angle (MrPBody & Jake68 off the top of my head).

As Jake68 mentioned you could even use some spring sliders to lower the car a bit if that's what you desire but I'd keep it simple and use what you have. Just make and or modify your brackets to get the desired ride height and an agressive angle so the rear segment does not try to pull the rear shackle over center as I believe this is an issue with your current set up.

My ugly set up that dead hooks to high 1.3's to 1.40's. I beilive it's about a 60* angle FWIW

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041268
07/27/11 10:52 AM
07/27/11 10:52 AM
Joined: Feb 2004
Posts: 178
Sterling Hts, MI
2
2FASTCORONET Offline
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2FASTCORONET  Offline
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Posts: 178
Sterling Hts, MI
Randy,

At this point I'm not sure what my car will do yet, because I'm trying for that one ten second slip too. I can tell you my shackles in the stock position are similar to yours. I've added a 1/2" aluminum plates in front of the front hanger to get about 45 degrees. The shackle position will allow the car to rise a lot more(push down), so you have to control it with your shocks. Also, if you need a set of B body springs to try. I have both xhd and ss for b bodies. I got a great deal on some tri city launchers and have them on now. I really like them a lot as they lowered the car in the rear. I have 5" of rise in the front end and added the calvert shocks. What a difference. I've really concentrated on gettin 5" of rise in the front end. Big difference even on the street! I'm looking forward to trying it out at the strip. Dennis

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: roadhazard] #1041269
07/27/11 11:01 AM
07/27/11 11:01 AM
Joined: Feb 2010
Posts: 1,377
Ohio
Todd Offline
pro stock
Todd  Offline
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Posts: 1,377
Ohio
I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: 2FASTCORONET] #1041270
07/27/11 11:11 AM
07/27/11 11:11 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
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Clinton Twp... north of Deetro...
Steff...I hear ya'! Believe me,I trust both Mike R... and Jake with their advice! I would be more than happy with a .1 improvement in my 60's! On a well-prepped track,that would translate to 1.42-1.46's! Thanks for your opinion! Greg,the angle on your shackles obviously works VERRRY well! Dennis,appreciate your offer,but I'll just stick with the ole' 002/003 springs...and get the shackle angle resolved! If that knocks off a tenth,like Steff suggests....I'll be a "Happy Camper"! Thanks,Guys!

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Todd] #1041271
07/27/11 11:12 AM
07/27/11 11:12 AM
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.



Great solution. How fast is the car? 60 ft?


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Todd] #1041272
07/27/11 11:15 AM
07/27/11 11:15 AM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
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Clinton Twp... north of Deetro...
Todd...NICE SET-UP! I've never seen sliders installed before this! How do they work for you?

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041273
07/27/11 11:24 AM
07/27/11 11:24 AM
Joined: Dec 2005
Posts: 1,495
Shelby mi.
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JAKE68 Offline
pro stock
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Posts: 1,495
Shelby mi.
Quote:

Can I get some "Real World" opinions...from the actual experience of correcting a "neautral" angle(straight up and down)to a "corrected" angle of 30 degrees forward(top of shackle)? I'm VERY curious as to the difference it made in the 60' times! I am talking about Super Stock springs. My angle is at this position because I'm using the 002/003 A-Body springs on my '69' GTX....and apparently the rear attaching point has to be moved forward 1-1/1/2" Thanks in advance for your information! Randy B.



There is no REAL WORD opinions that can be given. A paqckage has to totaly work with everything to be right. It is given that your package is not right. Fix it and you will see REAL WORLD if it worked or not. But it needs fixing


JAKES AUTOMOTIVE
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041274
07/27/11 11:41 AM
07/27/11 11:41 AM
Joined: Feb 2010
Posts: 1,377
Ohio
Todd Offline
pro stock
Todd  Offline
pro stock

Joined: Feb 2010
Posts: 1,377
Ohio
Quote:

Todd...NICE SET-UP! I've never seen sliders installed before this! How do they work for you?




Thanks! I havnt run the car before with the shakles but only once with the sliders and was having engine problems so the 60' really sucked. other than that I like them. Got them from speedway motors. They have 2 kinds ones with the bearings and ones without. The pic is with the suspension hanging all the way extended.

Last edited by Todd; 07/27/11 11:52 AM.
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041275
07/27/11 12:48 PM
07/27/11 12:48 PM
Joined: Jan 2003
Posts: 1,009
Richmond Twp. Mi.
Mr340 Offline
super stock
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Posts: 1,009
Richmond Twp. Mi.
Randy,
Get that Shackle mount moved and bring it out to Ubly this Saturday.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Todd] #1041276
07/27/11 01:07 PM
07/27/11 01:07 PM
Joined: Feb 2010
Posts: 155
Tulsa oklahoma USA
2
2734bbl Offline
member
2734bbl  Offline
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Posts: 155
Tulsa oklahoma USA
Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.




My shackles hit also and the car rides really stiff. I like the look of the sliders.

Last edited by 2734bbl; 07/27/11 01:09 PM.
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: 2734bbl] #1041277
07/27/11 01:17 PM
07/27/11 01:17 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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Posts: 52,972
Romeo MI
Quote:

Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.




My shackles hit also and the car rides really stiff. I like the look of the sliders.




They must be hitting on the back(rear) side of the
shackle... if they hit then the spring just went solid
and it rides stiff

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: MR_P_BODY] #1041278
07/27/11 01:28 PM
07/27/11 01:28 PM
Joined: Feb 2010
Posts: 155
Tulsa oklahoma USA
2
2734bbl Offline
member
2734bbl  Offline
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2

Joined: Feb 2010
Posts: 155
Tulsa oklahoma USA
Quote:

Quote:

Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.




My shackles hit also and the car rides really stiff. I like the look of the sliders.




They must be hitting on the back(rear) side of the
shackle... if they hit then the spring just went solid
and it rides stiff






Correct. Hooks great but rides like a buckboard.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Mr340] #1041279
07/27/11 02:01 PM
07/27/11 02:01 PM
Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
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Labratt Offline OP
Good Ol Randy B!
Labratt  Offline OP
Good Ol Randy B!
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Joined: Sep 2009
Posts: 2,325
Clinton Twp... north of Deetro...
Hey,Gary! No can do!...I've got a lot of "stuff" to sort..and clean up for a garage/pole barn sale on Sunday,Aug.7th! Never realized how much a person could accumulate in 10 yrs.!!! Have fun!...gonna be another HOT one! I'm waiting for those 70 degree temps to roll around again! Keep me posted!

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Labratt] #1041280
07/27/11 02:54 PM
07/27/11 02:54 PM
Joined: Jan 2003
Posts: 6,840
The Swamp
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Sixpak Offline
master
Sixpak  Offline
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Posts: 6,840
The Swamp
There's a low buck solution to this issue. Make a 2" or so spacer that goes between the shackle mount on the body and the top shackle bracket. Some 2 x 2 or 2 x 3 steel tubing, a sawzall, a few drill holes and you're in business. Here's something I made years ago. Crude but effective, and cheap. By the way, the picture was taken with the car on jackstands under the body, not the suspension. Resting on its wheels, the shackle pointed at 4 o clock. And today I would not use the Mr Gasket long shackles - I'd use stock ones.

6749373-P1010065.JPG (84 downloads)
Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Todd] #1041281
07/27/11 03:01 PM
07/27/11 03:01 PM
Joined: Jan 2003
Posts: 6,840
The Swamp
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Sixpak Offline
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Posts: 6,840
The Swamp
Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.



Is the car weight off the suspension in your pic? It looks like all the forward travel in the slider is used up. I would think that you'd need the rear leaf eye bolt, at rest, to be towards the back, and as the chassis rises the rear spring bolt would want to move forward.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Sixpak] #1041282
07/27/11 03:18 PM
07/27/11 03:18 PM
Joined: Feb 2010
Posts: 1,377
Ohio
Todd Offline
pro stock
Todd  Offline
pro stock

Joined: Feb 2010
Posts: 1,377
Ohio
Quote:

Quote:

I had a problem with the shackle hitting on the frame. Instead of making a new mount and trying to make the shackle work I installed some sliders. The suspension moves alot easier.



Is the car weight off the suspension in your pic? It looks like all the forward travel in the slider is used up. I would think that you'd need the rear leaf eye bolt, at rest, to be towards the back, and as the chassis rises the rear spring bolt would want to move forward.





Yes its with the suspension hanging. With it on the ground the spring bolt is an inch from the rear of the slot. The springs are almost level at ride height so their not gonna bottom out on the rear side.

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: Todd] #1041283
07/27/11 04:04 PM
07/27/11 04:04 PM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
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roadhazard  Offline
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Posts: 3,675
Akron, Ohio U.S.A.
Todd you have a SWEET looking ride

With the tires off the ground do you still have an inch or so for the slider to still move forward when the springs arch?

Randy I'd also follow the advise to use the stock rear shackle over the aftermarket ones. Also when you do get everything all set up don't forget to check rear shock length with the suspension hanging

Also what's the wheelbase on your car Randy?

Re: BENEFITS OF A CORRECTED REAR SHACKLE HANGER??? [Re: roadhazard] #1041284
07/27/11 04:28 PM
07/27/11 04:28 PM
Joined: Feb 2010
Posts: 1,377
Ohio
Todd Offline
pro stock
Todd  Offline
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Posts: 1,377
Ohio
Quote:

Todd you have a SWEET looking ride

With the tires off the ground do you still have an inch or so for the slider to still move forward when the springs arch?

Randy I'd also follow the advise to use the stock rear shackle over the aftermarket ones. Also when you do get everything all set up don't forget to check rear shock length with the suspension hanging

Also what's the wheelbase on your car Randy?





With the tires off the ground the slider is all the way forward. It will never get that far cuz its got ladder bars and floaters on the axle.

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