Roof rails are the first peice hardware that I installed in my van conversion. They are very easy to install, but there are some gotchas. This video covers them all.

Product Links:
Roof rails - search for "sprinter roof rails" on ebay (link is constantly changing)
Heat gun - https://amzn.to/35tkQ1k
Butyl Tape - https://amzn.to/2YSOWsA

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