I got an 87 f150 4.9L 4 speed, standard cab, 8 ft bed. Im sure its stock axles but I was wondering what they are. I dont know how to tell what they are just by looking at them. Can someone tell me how to figure out what they are?

 

If you still have the door jamb sticker use this to decode it: Ford Door Sticker Decoder .: Articles

 

Most likely you have the same axles found under every other F150 of this vintage... the Ford 8.8 in the back and the Dana 44 TTB up front.