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White strips of plastic on back of cab

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Does anyone else with a crew cab truck know what the purpose of these strips of white plastic is?  


They are located on the back of each cab corner between the cab and bed.  My guess is they were to protect the cab when the bed was placed on the frame?  


They are starting to curl and peel off.  There is nothing under them but paint and nasty, sticky adhesive.





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  • 3 years later...

Mine are peeling worse than that since day 1.  Showed dealer and they said they could fix but would have to pull bed. I declined. 

Besides looking like they will fall off mine are still there 5 years later

driver side is worse than passenger 




Edited by 2018GMC
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