Is your Buick Park Avenue in need of maintenance? Let us help. 1991 Buick Park Avenue Base GAS 3.8 V 6 Transaxle Automatic 4 Replacement parts at near wholesale prices.  We have Buick technicians on hold ready to take your calls and help you place an order. Is your Park Avenue no longer in production? No Worries! We can help you maintain it like new! Ask us how!