Well I have been thinking about replacing my 14ff with a dana 70 rear. If this gets any intrest will help make that desicion. It is a Boyce unit that I got second hand about three years ago, still have the 1400.00 reciept (no I didnt pay that), I have since put in a detroit, rock bruiser diff cover, shaved the axle and it has the shock mounts set up for inboard. The brakes are still drum and in great shape. I would like 650, and could possibly help with delivery.