Here is a shot us loosening our brake line so we can droop the rear far enough to get the coil in.

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And us using the high lift to get the rear up high enough to place the spring. THIS IS NOT WHAT A HIGH LIFT JACK IS FOR. Do not get under a truck you jack up like this. Its a risky move. I become a safety officer when things are jacked up, having been under a truck with a jack that failed once. The only reason we did this was because we were not taking the tire off.

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In retrospect. We should have used the standard jack with a secondary jack under the rear axle, and took the tire off, and lowered the axle to the ground with no wheel or tire.

It would have worked to release the tension on the spring.