I left the title vague as to maybe we can consolidate all roof dimensions for LWB/SWB and Generations into one post and sticky it for future reference.
Then this info could then be used for anyone looking to aftermarket racks to use or DIY rack builds.
Gen 1 and 2 use 5" gutter mount feet, iirc.
If anyone has the measurements on hand for the other bodystyles and generations, please post up and I can update this post.
Gen 1 SWB
LWB
90x48" (up to 94" long depending on where you measure)
Gen 2 SWB (as the imports come over as well as any of our international/Canadian members)
LWB
Gen 3