Posted 7/2/2026 11:22 (#11690557 - in reply to #11690479) Subject: RE: JD 6600 rear engine adapter plate
Faunsdale, AL
Like he said, the engine block will bolt to the JD clutch housings that were used for 4010 through 4960 as far as I know. Inside that, all bets are off, but the 404 out of a 6600 is popular for 4020 repower projects.
JD 6600 rear engine adapter plate