T-bars vs Stored energy
So the shackle allows the rear of the leaf spring to separate from the frame and not travel in an arc ?
Please..........tell me more. LOLOLOLOLOL
The separation we look for is in the leafs , as the body rises , putting weight on and planting the rear tires.
I do have sliders on my car , for the record.
They allow the ride height to be about three inches lower and work just fine for street driving.
I will get the car to the track this spring ( I didn't finish this one till November ) and I'll bet you green dollars that they will work just fine there too.
I am not sure how to address a lot of your post because I haven't been in sixth grade for around 43 years.
I've been around Mopar Street and Race cars for nearly 40 years, and have NEVER seen any sort of practical application for rear shackle "sliders". There are sliders that have a practical use when using ladder bars with leaf springs...the purpose being to avoid binding when the two forward pivot points begin to move in different arches, but that's it.
The shackle/slider set up CAN NOT WORK EVER in a drag style application. Here's why.
When the rear rotates forward and the pinion snubber..or traction bar, limits the rotation, that force is used to raise the car. As the spring arches, the distance between the front and rear eyes becomes shorter, and the shackle allows this natural motion to happen by leaning forward with the spring.
With that rear slider set-up, in order for the spring to achieve arch, it actually has to distort itself...needs to become S shaped in reaction to the lifting force at the front.
A Slider will work perfectly when the only motion of the spring is a reaction to gravity...straight up and down forces. But when the motion is the result of torque reaction, all it can do is bind and cause twist in the spring.
I imagine with some real horsepower behind it, that set up could be EXTREMELY violent, and not in a good way.
