Turn the radio up alittle more! I have the same thing going on, but just have not had much time to look into it. I would think that some white lithum grease on the pivot point would help and last longer than wd-40.
Mine has done and is doing the creaking noise again. Last time I used a little silicon assembly lube on the plunger shaft and it quieted down for about a year. It seems to be worse in warmer weather. The noise comes from the rubber seal around the plunger at the fire wall. You'll need to slide the clutch safety switch forward to get to it and lube it. It is tight in there if you are a bigger than average guy. Have fun, I will be doing it to mine tomorrow too.
A forum community dedicated to Dodge Cummins Diesel truck owners and enthusiasts. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!