Okay I have a 1994 ford ranger 2.3 xlt with about 140k on it I thought I was haveong a rear ma seal leak but I have dropped the trans and pulled the clutch and flywheel off to find out my oil pan seal is leaking right below my rear seal. ? Is should I still pull that rear main. Seal I have purchased it already
?

 

Yes, replace your rear main seal.
If it's not leaking now, it will eventually.
It's a 20 dollar part, you're already in there, it doesn't make sense not to replace it.