Just getting around to getting the IRS into my 91 project. No coil overs for this one, H&R springs into stock location onto lower arms and into spring pocket.

I know I'm going to have to trim the coils so they'll be in and out a few times.

I have the IRS loosely bolted at the torque boxes and am lowering the rear of the assembly, pivoting down. The car is still on stands all around.

When jacking the rear of the IRS into place the springs aren't compressing much and I'm lifting the entire rear of the car. This time I got my neighbor to put his 210lbs on the back of the car which was barely enough to compress the springs so i could bolt the rear mounts.

I can't be the first one dealing with this. I can build some sort of rig, but am looking for an easy answer I'm overlooking. A spring compressor is the obvious thing, but also a pita.