My ford LGT 145 has an external screw on oil filter for the hydro tranny.
I put a new WIX 51307 back on it when I changed the fluid. I had nothing but problems with the new filter leaking. It would come loose leak etc. Finally I replaced it with a FRAM PH16 thinking it was a flook.
About 5 minutes into running it the FRAM PH16 was loose. HMMM I tighten it back up. 5 more min its leaking like crazy.
I look close and its leaking out of the seal crimp of the filter and the filter looks like it expanded back. Further looking both filters had the anti drain back valves ripped.
Can you guess what is wrong???
The previous owner hooked up the lines backwards and it was building pressure against the antidrainback balve and it actually split the FRAM PH 16.
Now I switched the lines and am off to buy my 3rd filter.
If you look at my attachment the FRAM is all puffed up and pulled away from the base. Notice the no paint line. Lucky it didnt blow harder.