They've got virtually nothing to change at all! lol. Add a couple blocks and bolts for the bed in 09+ trucks, fuel filler and vent size change. BAM! Done! lol. Quite literally, that's all that's different. What they need to worry about is not '09, they gotta worry about 2010 with all those new safety features. Slap the 'different' parts into the 01-05 kit to cover 01-09 and call it good.
Some time has passed since this thread was active..... 09+ Ranger short boxes have 10 bolts instead of the normal 6 in 08 and older models. Kits come with 14 bolts and blocks(6 for cab, 6 for short bed/8 for long bed). 09 guys would need an additional 2 blocks and bolts for the short bed. IDK how many bolts on on 09 longbeds. Additional bolts and blocks can be purchased straight from PA for about $3 a block and about the same per bolt and washer.