I need to get a filter kit for my tranny, but I can't tell if I have the A440 or the A442. I have a 1991 HZJ77 - Toyodiy seems to indicate I have the A440F based on my VIN, but megazip referenced the A442F, and Cruiser Outfitters lists the A442F for the HZJ77. If there a definitive way to tell which one I have? A code on the firewall or something?