1965 833 4sp. tailshaft seal R&R

On my 66 833 I had to use a tail shaft seal for 3-speed manual transmission, the 66 has a smaller tailshaft than the 67-up models, mine doesn't have the trunion set-up but I bet the 64-65 833's take the same seal as 1966. Mine looked like an axle seal without the dust boot. Hope this helps, not sure how to change it on the 64-65 ones though, they have that flange.