That is weird.
Their 67-72 front a-arms and suspension kit utilizes a set of 73-87 spindles and ball joints.
Your current front suspension is identical to what is on any 67-72 truck.
I know they don't have a 73-87 rear kit,... but I wouldn't see why the front kit won't work on your truck.
Give Nate Porter a call at
www.porterbuiltfabrication.com.
Their new coil over suspension would be killer on your truck.
http://www.porterbuiltfabrication.co...il-Over-Option