List of Aamco Transmissions Stores in Portsmouth, NH Outlet Note Regular Brands Aamco Transmissions New Hampshire Portsmouth Rating 4.6 based on 72 votes Official Website http://www.aamco.com/ Products Transmission Services Total Car Care Check Engine Light NameAddressPhone Name/Address/Phone Aamco Transmissions outlet - Portsmouth 3580 Lafayette Rd (603) 294-4023 People Also Viewed