LS kits that include alternator pigtails for different years avoid mismatch issues between truck

https://www.scribd.com/document/1014450831/From-Principle-to-Automobile-How-Modern-Electrical-Wiring-Harnesses-Power-Automotive-Development-190884

LS kits that include alternator pigtails for different years avoid mismatch issues between truck and car alternator regulators.