Here's a few pics that will show the path of the different gear selections in the H D transmissions

http://i149.photobucket.com/albums/s45/bills985/gears1.jpg


This one will show the different type of gear combinations used for the gears in the 06 dynas when introduced and the 07 models . Straight cut in 1st and 5th. (straight cut verses helical cut)

http://i149.photobucket.com/albums/s45/bills985/gears2.jpg