I need to buy a return line kit for my truck. Im going to be buying it off ebay. I was just wodnering if i need to change the injectors at the same time because this kit comes with 8 washers for under the injectors...or do i just not use these washers until i need to change the injectors?. Also the kit comes either early or late caps...since my truck is a 1993 can i assume i need the late caps...or where can i find these caps on my truck so i can make sure im getting the right ones?

Return line kit on ebay

 

the caps are on top of each injector they have line running from one to another.
i replaced all of the line caps and orings on mine. it was pretty simple take em off as aone peice replace them as one peice. there was only 1 metal line that i had to undo both sides of to get the new line on. the biggest problem is that i had to stand on a stool to do it even though im 6'4.