If you need help with part numbers i have the dealer books with correct numbers.do you have short or long water pump on your truck.long pump is alt on pass side ac on driver short is opposite.I have the brackets and pulleys for either my prices Long Pump AC brackets $25,Pulleys $20, Alt $10, PS $15. Short Pump AC $75, Alt $30,PS $50, Pulleys $40.let me know if you hve any questions or need anything.ill try to help best i can i have the 67-72 dealer books so i can look up correct numbers for you,or sell you correct parts or,try to answer your questions,if you post here might take longer or email me at
gmcrat427@yahoo.com