When you measure the harrow width, are you measuring the width of the front or rear set of discs? I have been using a set of 3p.h. harrows for years (9 feet measured at the rear)and broke a cast bearing on them... no longer available. Rats!  Anyway, I got some generic cast bearings (made in China <!-- s:( --><img src="{SMILIES_PATH}/icon_sad.gif" alt=":(" title="Sad" /><!-- s:( --> ) and had to modify the harrow some, but they are installed. We shall see.....
   The dealer near here has a set of White discs that look the same as the pictures you have posted. I believe they are 13 feet and in excellent shape. he asking 4 thousand$. seems like a lot, but they look almost unused. How much do/did they go for new? I think even the 2655 could pull them and not look silly.
                Cal