Ok, for the life of me a cannot seem to figure out how to SAFELY reinstall the sliding/lift mechanism back in the rails... I do not want to force anything lest I break my new to me slide/lift mechanism(thanks hanno)...

I managed to install one side after fiddling with it for a good half hour... it just miraculously "fell" in there... I cannot see how... and I can't replicate it with the other side... any tricks to this?

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85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project