Early shackle strap length

Likely ur rear springs are ruined if on the car very long.

Good to know, it looks like they've been on there for quite some time. I honestly don't know what the last owner was trying to accomplish. They had a set of spring helper shocks mounted as well as the extended shackles. The leaf springs had to be compressed in order to mount the shocks, which were at full extension. The rear suspension couldn't compress or extend at all.