How to Replace the Coupler on a Log Splitter

While splitting a load of firewood, the log splitter started making a terrible rattle. I was happy to find that the coupling between the engine and the hydraulic pump had failed, rather than the engine or pump. This video shows the fairly easy DIY job of replacing the coupling.
Some of the items featured in this video are available on Amazon.com. We’ve added links below for your convenience. As an Amazon Associate, I earn from qualifying purchases. There is no added cost to you.
Gear Puller Set, 3" 4" 6" 8" 3 Jaw Puller Kit for Pulley Gear Bearing Flywheel Removal, Heavy Duty Pulley Puller with Reversible Jaws 4 pcs
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B'laster - PB-TS - Penetrating Catalyst - 4-Ounces
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1/2" to 7/8" L075 Flexible 3-Piece L-Jaw Coupling Set & Buna-N NBR Rubber Spider (engine specific)
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Thanks to @RiverForged on IG for help with the thumbnails!