Height Clearance; Reverse level?

[Dickie Dunkelberger]

I have an opportunity to switch parking garages for a better spot at work, but the posted height limit is 6.5'. Chevy claims the Trailboss is 78.35" tall (which works out to 6.525' - i.e. 6' 6 and 5/16") but does not differentiate between tire/wheel sizes (bringing this up since the 20" rims with the all-terrains are technically a taller tire than what I have with the 18" and standard duratracs). Whether the 5/16" difference would actually cause issues is unknown, but wondering if anyone knows if the duratrac equipped trucks are a little shorter?

Also, I have seen YouTubes and other write-ups on the reverse level for the trail boss (where you swap out the rear 2" block for a 1" block), and am wondering how much that would actually impact the overall height of the truck, with the tallest point of the truck being the tallest part of the cab.

 

[Radiant_Red_Boss]

I have an opportunity to switch parking garages for a better spot at work, but the posted height limit is 6.5'. Chevy claims the Trailboss is 78.35" tall (which works out to 6.525' - i.e. 6' 6 and 5/16") but does not differentiate between tire/wheel sizes (bringing this up since the 20" rims with the all-terrains are technically a taller tire than what I have with the 18" and standard duratracs). Whether the 5/16" difference would actually cause issues is unknown, but wondering if anyone knows if the duratrac equipped trucks are a little shorter?

Also, I have seen YouTubes and other write-ups on the reverse level for the trail boss (where you swap out the rear 2" block for a 1" block), and am wondering how much that would actually impact the overall height of the truck, with the tallest point of the truck being the tallest part of the cab.

I think the tallest point on my truck is that stupid XM shark fin up top. I would measure to there and make your decision. Good luck!