Celebrating 75 YEARS IN THE USA. We install JASPER Engines, Transmissions, & Differentials which provide a 3 Year | 100,000 Mile Nationwide Parts and Labor Warranty and the industry leader since 1942. With their extensive research, they have insight to correct problems in original manufacture design, improving their products performance, reliability and durability. The BEST Product - BEST Warranty - MADE IN THE USA Since 1942.