I want to get a used 04 A340F to put in 02 Tundra. I do alot of towing and want to make sure the manufacture date is in 04 to get past all the Planetary issues that A340f's had in the past. Is there a part number sequence on the trans tag that tells the manufacture date? thanks

 

after seeing no replies, I did some more research. I took the vehicle VIN and a transmission part number (in this case it was 0C050) to the local Toyota dealer. What they were able to tell me was it was a remanufactured transmission built in 8/04 and is backwards compatible, but not forward compatible. That's exactly the information I needed. I also looked at a few transmissions, for a metal tag that was supposed to be attached to the passenger side pan bolts, and found none had that metal tag. Maybe they were thrown away by people who had drained them? Anyway, the dealer was a great help in this case.

 

Thanks for posting what you found!

I really had no idea when I read your first post.