Here's a picture of a differential hoist like the one I have.

The top pulley has 13 chain link pockets on the large side of the pulley, and 12 pockets on the smaller side.

Each link is 1" apart.

How many inches of chain do I have to pull down to raise my Model A engine 1"?.

Differential Hoist z.jpg

The top pulley has 13 chain link pockets on the large side of the pulley, and 12 pockets on the smaller side.

Each link is 1" apart.

How many inches of chain do I have to pull down to raise my Model A engine 1"?.

Differential Hoist z.jpg

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