WC T-5 or NO?

Mine is a 91 LX 5.0. And as you may of read im having trans problems. So, Im looking for a rebuild kit. I just want to know if it is a World Class T-5 or not and how can I tell? I want to make sure I have the right parts. Because I was told that in '90 they went WC but I just want to make sure. Please Advise. Thanks
 
Mine is a 91 LX 5.0. And as you may of read im having trans problems. So, Im looking for a rebuild kit. I just want to know if it is a World Class T-5 or not and how can I tell? I want to make sure I have the right parts. Because I was told that in '90 they went WC but I just want to make sure. Please Advise. Thanks


the first world class t 5 appeared im the mustang in mid 1985. since then every t 5 built and put in a mustang is wc
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If it's the original trans, it's world class

Non-WC only came in late 83's, all of 1984 and the beginning of 1985.

Unless someone swapped your trans with an early t-5, it's WC.
 
I think i vaguely remember "WC" being written somewhere on the top cover as well.

QUick and easy way.


World Class
ernie1.jpg



NON-World CLass
ernie2.jpg



More than likely, it's a WC though