warlock i appreciate your constant responses with suggestions and encouragement so far you have been a huge help appreciate it. now can someone point me towards figuring out all the acronyms lol. for example i found a motor on the website warlock posted and this is what it reads

2001
Engine
Chevy Truck Silverado 2500 4DRPU,ABS,6.0,AOD,CO L,LS,2-01

and one more

2002
Engine
Chevy Truck Silverado 2500 4EXT,ABS,6.0HD,AOD4X 4,C,LS4.10,8 01

some of the letters i can decipher through but most of it leaves me scratching my head.