MS03 2500
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After reading about these newer bump stop on other sites, I decided to get them a try. They are made out of some type of poly material unlike the stock ones. I believe they will work on the 1500s also(but check for yourself). The part number is GM 15835667 and 15835666 are the stock part. Looks like a got about a inch and a half lift out of it. Now I have 100,000 miles on the working girl so this is the first mod I'll be doing in the next couple of weeks.