My 78 FJ45 has all of a sudden decided not to shift into first or second. It will once it comes to a complete stop. Shifting up works OK but coming down is where the problem is. Double clutching works to get into 2nd from 3rd, but not into 1st. 3rd and 4th up and down are OK. My clutch adjust seems good. With the clutch pushed in I can spin the disc. I believe the 1st/2nd gear synchro is the problem. Have I missed any thing? How this first came up was I came off the hyway and stopped. I was unable to get the trans out of first no matter what I did. I popped the top off and everything appeared to be OK. The synchro from what I could see of it didn't look bad. It has stayed in first once since then. I rocked the truck with the clutch and got it to let go. 
