Anyone with a full-size truck and a tall cap?

[Mustang]

Does anyone have a full-size truck w/a tall cap on the bed, who would be so kind as to measure the interior height from bed floor to cap ceiling? Also, the length from the tailgate (interior) to the frontmost "tall" part of the cap? 8' bed preferred, but I'll take 6' for height at least.

[tls25rs]

Ask GMD Computrack (Peter Kates) as that is how he transports his dirt bikes etc. when he isn't pulling a trailer. He has a older style Ram with the longer bed I think.

Joel