When I helped a buddy who lost his driveline, I pressed both of the cogs (1999 ZL) off at the same time. Then I pressed one on from one end, the other on from the other end. It was easy, no fuss, no muss. I took some time and cleaned the old driveline to help eliminate any extra force needed, (scraped it, then fine sandpaper) and used some penetrating oil when I worked on it, but it went fast. And like Tamacat said, make sure you align the arrows, or you get to do it twice! (oops

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Rebuilding the fleet!
2008 RMK 600 155", 2006 RMK 600 144", 98 Indy 440, 95 Prowler 550 2-up, 1990 Indy 650
RIP, destroyed by fire 1-22-2008

04 RMK 800, 05 RMK 600, 02 RMK 800, 97 RMK 700