Sorry for all the basic questions. I am a happy new owner of a '78 FJ40 with lots of questions.
I'm going to change all the fluids, and I have a few questions. I did a search and I saw 80W90 for the diff. What grade do I use for the transmission/transfer?  o I use engine oil or gear oil for the transmission/transfer?
I'm going to change all the fluids, and I have a few questions. I did a search and I saw 80W90 for the diff. What grade do I use for the transmission/transfer?  o I use engine oil or gear oil for the transmission/transfer?