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the greenlee I think could pull an elephant whole, through 1" conduit...

I once pulled a "welded to conduit" UG burnout (3-750MCM) out with an elephant.
She broke it loose like it was nothing. This after we tried 2- 3/4Ton service trucks and a Ford tractor at once to no avail.
The Greenlee might meet its match there.

We use a Greenlee Super Tugger.
I wish we had an elephant. They're much more fun [Linked Image]