I found this online & knowing the Rams run in 3 year production cycles, with only minor changes
2nd Gen '02 - '05
3rd Gen '06 - '08
4th Gen '09 - '11
Box assy - 8 foot bed - 8 foot bed 06-08
more info from http://www.chryslerpartscenter.com/p...layCatalogid=2
Description Year MSRP Price Core Price Your Price
Mount bracket Right - 6.5 foot bed - 6.5 foot bed
Mount bracket Left - 6.5 foot bed - 6.5 foot bed
Mount bracket Right - 8 foot bed - 8 foot bed
Mount bracket Left - 8 foot bed - 8 foot bed
Dodge mega cabs bed is 6'4" the same as a dodge quad cab short bed.
A mega cab is built by taking a quad cab 8' long bed frame. They remove the long bed and put on a standad 6'4" short box and then elongate the cab.
There is a myth that a mega cab bed is shorter, this is not true. they are identical to a quad cab, and share the same id numbers this was confirmed at my local dodge dealership.
Also we confirmed this by taking a cap off a 2007 quad cab and put it on my 2006 mega cab and it fits pefectly.
Read more: http://wiki.answers.com/Q/What_is_th...#ixzz19pd8W5nS