Hey! What are you saying?
David, I am going to clean and grease this weekend. As far as the problem, I think I found it. The bar that runs to the back along the driveshaft tunnel is binding. I will not know for sure until this weekend, but I'm pretty sure thats it. So, do MB seats have some special lube for the tracks like the sunroofs, or will any grease work?

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual