I had a cracked housing on my shifter when I started work on my 9600/350. I was able to find a NOS housing on Ebay.
The rubber pucks seemed to seal just fine for me. I dabbed RTV around the gasket surfaces when I put it back together to make it airtight.
For your dry-rotted rubber, you could try getting someone with a 3D printer to make a couple of replacements out of TPU filament. I don't know how well it will hold up to exposure to petroleum, but it is worth a try. I am trying it out on the slide valve for a Trico wiper motor I cleaned up.
The final option is to find a electric shifter off of a newer C50/60/65/70. The axles between the AD and the 1960s models didn't seem to change much. The vacuum shift option did go into the sixties as well, so you might be able to find shift valves on those models as well.
Last edited by Puffie40; 09/23/2024 4:39 AM.
