ARP BB Ford Complete Engine Fastener Kit - 6 Point M59XL1 and 13015) and you have

and 13015) and you have a regulator with vastly different characteristics

1979-1993 GMC C1500 Suburban

we strive for perfection on all of the products that we manufacture

1956-1986 Ford Thunderbird

ARP BB Ford Complete Engine Fastener Kit - 6 Point M59XL1 and 13015) and you haveARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Engine and Accessory