I think i have a Fram type filter.`There is a Fram C31PL element in the canister.
This filter was on the cracked engine that was in the truck when i bought it, this was a '54 235.
The 56' 261 (from Canada)has two holes on the left side just like the 235 that was in my truck.
i hooked up the filter inlet at the same hole that my gauge is on. the filter outlet is hooked up at the front hole and it comes out inside the block next to the oilpipe from the pump.

my idle might be a bit to slow at 500 rpm i think i will settle for 600 rpm and take a longer drive this weekend. I will keep a close eye on the oilpressure and rpm's

just installed a tach and vacuum gauge to monitor the engine when i am driving.

I have not seen a moveable pin when i rebuild the engine i am not sure if it is supposed to have one.

Thanks,

Dennis.