Trustee sought to set aside credit union's execution and subsequent sale of debtor's vehicle as a preference under 11 U.S.C. § 96b. The court held that delivery of the vehicle to credit union pursuant to the execution, at a time when credit union was not aware of debtor's insolvency, created a lien, or "transfer," under 11 U.S.C. § 96a(2), which precluded superior liens. Trustee's complaint was dismissed.