yes 06-present you have the choice of 5.5 or 6.5 bed 04-05 only had the 5.5 option

 

my 2006 S.Crew 4x4 with 6.5' bed has a one piece! Not sure this will help anyone, but I'll even take a picture if you don't believe me

Nem

 

wow im confused i guess its like my truck the sticker on the window stated its a 04 xlt my vin number pulls it up as a 05 lariat little weird i guess they just grabbed a drive shaft and threw it in there and they forgot to add leather to my truck lol

 

Oh I believe you. Change was for 09 due to extra 6" length.

 

Thanks for the input, all. My truck has the 6.5' box...therefore the two piece driveshaft.

Still no resolve as Ford Motor has deemed the truck 'still working within Ford specifications' even after I provided my local dealer transmission specialist with a test ride while towing my camper. He agreed it was bad and not good for Ford but not willing to touch the problem as he was directed by Ford Motor to not try a fix.

If anyone has this vibration issue with the '09 supercrew 4x4 w/ 6.5' bed, please complain to Ford Motor through its hotline...