Will an OEM bedliner from a 2004 longbed fit in the back of my 76 longbed? both are 8 ft.

 

I'd honestly go with a spray in liner. I'm betting the wheel well size will be different if bed width isn't. Here are the dimensions for the bed's for the newer truck. You'd have to measure your 76 and see if that fits http://www.fordf150.net/specs/04f150.php

 

Thanks for the answer. Yeah, it wasn't an exact fit but, with some fabricating and piecing in, I managed to get it in. The wheel wells fit there was a slight difference in the width between the tires.

 

Right on IMO custom fabricating anything can only add to the cool factor!