Quick note though, I had also considered buying some already cleaned injectors (ebay store) and just swapping them in, figured I'd save some time. DON'T. There are several part numbers for the early 22re's, and although some are interchangeable, and some are superceded numbers your asking for trouble. I checked my vin with the dealer before I bought some (luckily) and found out that even though the part numbers they had listed were for my year truck, my vin actually called for a different part number entirely, no idea why though. It's always best to rebuild what you have than replace if possible, then you know it's the right part.