If I recall correctly, they have little assortments of those push nuts in the HELP section at AutoZone. Not sure if they have the correct size, but I seem to recall an assortment package with all different sizes in there. If not, then the dealer or improvisation are your best bets.

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-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition