I had the same kind of experience with NAPA. They sold me replacement axles that had the wrong retaining clips on them, which then required the transmission to be removed and the axles were destroyed in the process. They wanted nothing to do with it. I haven't been back since.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma