Why won't an oil filter designed for my 4.0 OHV fit?

[AuroraTheMinitruck]

So a little while back I bought my 1993 ranger 4.0 V6. As per the usual with all new purchases, I went to change the fluids. When changing the oil and filter, I noticed that the filter looked to be smaller than other 4.0 filters I've seen before. So I figured, what the heck? I went out and bought a filter for the 4.0, and it wouldn't fit! It was just physically too big. Has anyone else had this issue? Thanks

 

[RonD]

There were two different size but for the 4.0l OHV and the 4.0l SOHC

FL1A seal at 2.4" <<< smaller and for the 4.0l OHV, which is what you have, 1990-2000 Rangers
FL820S seal at 2.9"