Is it possible to convert??
You are changing the dynamics of the entire situation. This is sort of like two guys holding a weight, let's say you have a device sort of like a stretcher with a guy at each end, and a weight "down towards" one end. One guy has more of the weight. If you TILT that weight the guy on the other end has to hold up even more of the original load.
These springs are not the same situation, but the idea is kind of similar. The rear of the spring is MUCH weaker. By putting a longer shackle on there you are putting much much more force on that back half.
Also, shackles, even stockers, which are not tight and rigid, "fall over" sideways under cornering force, and this gets worse as they are made longer and / or the bushings are worn
This used to be a BIG problem many guys did not realize on things like Jeeps and Landcruisers. This is because, with the shackles moving, and a crosswise drag link, as the shackles moved, this effectively steers the front wheels.
IHC on the late scouts had a flat spring across between the inside of the two shackles. I did the same thing with an old leaf on my beat up FJ-40. It DRAMATICALLY improved handling.
The rear is the same way. As those big, long sloppy shackles "waltz around" this steers the car, and "it ain't good." Like driving with two rear tires "half flat"
I don't know what this is, but this is the idea:
You are changing the dynamics of the entire situation. This is sort of like two guys holding a weight, let's say you have a device sort of like a stretcher with a guy at each end, and a weight "down towards" one end. One guy has more of the weight. If you TILT that weight the guy on the other end has to hold up even more of the original load.
These springs are not the same situation, but the idea is kind of similar. The rear of the spring is MUCH weaker. By putting a longer shackle on there you are putting much much more force on that back half.
Also, shackles, even stockers, which are not tight and rigid, "fall over" sideways under cornering force, and this gets worse as they are made longer and / or the bushings are worn
This used to be a BIG problem many guys did not realize on things like Jeeps and Landcruisers. This is because, with the shackles moving, and a crosswise drag link, as the shackles moved, this effectively steers the front wheels.
IHC on the late scouts had a flat spring across between the inside of the two shackles. I did the same thing with an old leaf on my beat up FJ-40. It DRAMATICALLY improved handling.
The rear is the same way. As those big, long sloppy shackles "waltz around" this steers the car, and "it ain't good." Like driving with two rear tires "half flat"
I don't know what this is, but this is the idea: