ummm, WD40 only displaces water, it doesnt really stick to the metal.

I'd use lithium grease, your choice of black, white, or purple... Most parts stores have them in tubes for grease guns

~Nate

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95 Honda Shadow ACE 1100.
1999 Plymouth Neon Expresso. 2.4 swap, 10.5 to 1 comp, big cams. Autocross time attack vehicle!
2012 Escape, 'hunter" (5 sp 4cyl)