[61K10]

Hi Greg--I know your town well as i grew up in Cazadero. So your 63 has a eaton HO33? my org rear was 3.90 and ft dana44 is 3.92. they say they have to be within 1% and 3.38's and 3.31's are about 2%. probably be ok on dirt or snow but not on the pavement for sure. Just finished yesterday on the rear end, haven't driven it yet. my trans sm420 makes noise when in 4th gear which probably mean bearings as the main-shaft and in-put is locked together. should have rebuilt it before lol.