I replaced the Eaton HO52 rear end in my 49' 3600 with a Dana 60 from a 69' F250. Almost exact same width backing plate to backing plate. I had the drive shaft shortened by about 2.5 inches and a yoke welded on to mate up to the Dana 60. It has a 3.73 ratio along with 29" diameter tires and I can hit 60MPH at 2500 RPM with the stock 4 speed transmission.
Last edited by bztguy; 05/10/2019 1:03 AM.
