[updated:LAST EDITED ON 27-Feb-02 AT 02:01 AM (EST)]Hello, sorry for my bad english.
Think very good before decide to buy a cover for the rear of your F150 : hardtop, hard tonneau in one part, hard tonneau in two parts, alu-deck in two parts...
I had all of this and the most usefull is the last one: alu-deck.
For many changes of weather, the hardtop is the best solution but you need help to remove it when you want. Hard tonneau is more esthetic and very good by rain, no problems...but a little bit hard to open. (installation better true dealer because is not easy to put the things in the right place).
You can see the different solutions on my gallery
Good luck
See my gallery in User Gallery at "1997 F150 Lariat"