Coil spring pocket retainer "the widget"

I have a 3,000 pound, full frame 3 link car, I have a widget weight jack assembly laying around. Would there be any benefits to running it over a conventional swivler weight jack on a car that heavy? Are they made for the left rear only to hold the spring under roll, or do they work in the front as well?

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Originally Posted by stock car driver

they are for the lr

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Ahh, that makes more sense. Would you recommend putting one on the left rear of my car? Both springs on top of the rearend.

Okay, I appreciate your replies. Coil spring pocket retainer for sale, 60$ lol

Is it a good idea to run swivel jacks on the rear also?