Bed dimensions

Does anyone know or have a reference for the Top on bed dimensions?

I have a 2nd gen that's coming to the end of her life with a ARE contractor cap as my work truck and I'm hoping the dimensions are close enough to make it work. If I don't have to spend 4k on a new cap and decals that'd be dandy.

I found a few measurements that are exactly the same, which I feel is too good to be true lol

 

Even if the bed dimensions are the same you have the spoiler on the rear of the cab.

 

.,.

 

That little spoiler that probably does nothing is going to cause a lot of headaches.

 

Come on now....that is good for +10HP. Add a K&N sticker and it adds another +5HP.

 

1st Gen toppers wouldn’t fit 2nd Gens, 2nd Gen toppers wouldn’t fit 3rd Gens, 3rd Gen toppers aren’t going to fit 4th Gens. Topper manufacturers love that! Gotta keep the economy churning away…

 

I still think one of the reasons they added that was because of the way the 3rd brake light leaked into the cab on 3rd Gens. Now that light is housed in the spoiler and they only need a small hole in the cab for wiring.