Flattened a leaf.

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I'm not trying to add to trouble shooting the spring problem, but I have a (educate me) question. I've never seen this type of leaf spring application. (old school here) What is advantage to having the leaf springs on a sliding shackle?
Norm

Leaf spring sliders are as old school as you can get. They allow the leaf springs arch without binding and make the rear of the car lift on launch planting the tires. Kinda like the whole Mopar rear suspension as designed........without the sliders. I never saw a use for them, but that's it in a nutshell.
 
I'm pretty sure those Springs are supposed to be used in conjunction with a pinion snubber?
 
remove the rear spring clamps and add more clamps to the front segment. no need for a snubber
 
So they work similar to extended rear shackles?
Norm

Extended rear shackles are to allow for more tire room using air shocks or a coil over shock. Although, I guess they would allow more arch due to their longer length, to my knowledge, that is not their intended design.
 
If those springs are the SS springs from Mexico, there was a bad batch from there a few years ago. Maybe leftovers?
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I have a set in the garage, the 002 had a screw up on the second leaf being too short, and let the main leaf start bending. I cut a second spring out of the original 340 form S springs and made a longer second spring that will support the main leaf. Then found a deal on complete caltrac set up, and didn`t use them.
The springs 002 wasn`t made like the ones we ran back in the day.??????????
 
Wasn’t trying to muddy the waters, just trying to learn something. To me the body torque is going to flatten the passenger spring drivers side will arch. But as stated just trying to learn.

That is why u see some drag cars lower on the pass side on a hard take off, the torque tries to lift that side of the axle. The reason super stock springs are always stronger w/ more leaves on that side.
 
In this picture you can see that half inch aluminum block that I made to go in front of the front Leaf perch. It moved the tires back that half inch that I needed to Center the tires in the wheel wells. I just bought some grade 8 bolts for them that were a half inch longer.
View attachment 1715253619

Don`t u know that nu can`t run those bars on a mopar ?!!
 
The slider reduces wheel hop. When the spring is changing lengths it dont move through the arc of the shackle.


@j par
I moved my axle back an inch and a half because that's where it needed to be for the size tire I'm running.

I started playing w/ mopars when I was 16 yrs. ods, never have I seen but one mopar wheel hop, it was on a 2002 dodge quadcab that I drove for 15 yrs. Back in my heaviest racing days, fords and chevies were the worst, especially the fords.
 
Extended rear shackles are to allow for more tire room using air shocks or a coil over shock. Although, I guess they would allow more arch due to their longer length, to my knowledge, that is not their intended design.
AND THEY WILL RUIN UR SPRINGS IN TIME !!
 
To the OP. I'm guessing your 5 year old springs were just worn out and gave up with the first full throttle under the new found power.

I ran SS springs for 5 years on my Dart. First 2 years with a gutless 318, next three years with a 400 horse magnum and lots of track time.

One day I walk out and the passenger side spring had given up. Dropped about 3 inches. Ordered brand new SS springs from summit and haven't had any problems yet. They lasted me through drag week so I'm thinking they are good. Also making much more power now because I procharged the magnum
 
Put new springs on, let's see how long they last.

Spring is not in bind, perch is fine, no noticable damage to anything, even the old spring looks fine. It does have a VERY small bend right at the rear spring eye.

New and old spring.

20181130_103639_zpsl6o6s6lf.jpg


See the slight bend right at the eye?

20181130_103652_zpsqkhaoinc.jpg


New spring sitting back in the correct spot.


20181130_105652_zpsyqmcoh5z.jpg


Hummm.....

Strange, I was expecting to see something noticeably wrong but I dont see anything that screams "im broken"?
 
Put new springs on, let's see how long they last.

Spring is not in bind, perch is fine, no noticable damage to anything, even the old spring looks fine. It does have a VERY small bend right at the rear spring eye.

New and old spring.

View attachment 1715255929

See the slight bend right at the eye?

View attachment 1715255930

New spring sitting back in the correct spot.


View attachment 1715255931

Hummm.....

Strange, I was expecting to see something noticeably wrong but I dont see anything that screams "im broken"?
Put new springs on, let's see how long they last.

Spring is not in bind, perch is fine, no noticable damage to anything, even the old spring looks fine. It does have a VERY small bend right at the rear spring eye.

New and old spring.

View attachment 1715255929

See the slight bend right at the eye?
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That is exactly what mine did, I posted earlier that I made a longer 2nd leaf to support it , out of the original form S springs. But haven`t tried them yet--------

View attachment 1715255930

New spring sitting back in the correct spot.


View attachment 1715255931

Hummm.....

Strange, I was expecting to see something noticeably wrong but I dont see anything that screams "im broken"?
 
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