I am about to refill both the transmission and differential of my 1928 D-60. The differential has new oil seals, but the transmission doesn't and has no provision for such. I'm afraid that the transmission will leak plenty if I use conventional 90 weight oil. I know that Ford model A transmissions are also without provision for oil seals, and hence Ford recommend 600 weight oil (so viscous it is almost grease). Would anyone know what is recommended for Durant's transmissions and differentials? or had any experience in this matter?
Thank you for the help!
Claude Lavoie
Where Are You From? Iroquois, Ontario
Do You own a car built by Durant? 1928 D-60 and 1930 614, both 4 door sedans
Hi Claude-use 600 wt in both the trans and rear end. It will slow down the gears in the trans which makes it shift a little easier. It will also run out of the back of the trans slower! Phil