Hi I purchased a set of 7 speed Shimano 600 index downtube shifters. When they came in the mail they were not togwther as units but totally seperate as in all the washers lever and everything were not together as one piece. Can some one tell me the order to put these back together in or better yet provide a diagram. Thanks for the help. I am also going to post in mechanics so mods you can delete one of the posts if its not alright.