1st gen tundra A340F tranny issue - pics

[dyogim]

The A340F is an auto tranny found on several toyota vehicles. I have a 2000 tundra V8. At around 76K miles back in mid-2004, the tranny shifted hard after a wheelin' trip. The shifts occurred on the hwy and on my street on my way home. I pulled the pan and found this:

http://lh4.ggpht.com/_oJh5dgNo-iY/SY3pnVjtP9I/AAAAAAAABb0/rOGDt7fQRqI/s800/P5120002.JPG

http://lh3.ggpht.com/_oJh5dgNo-iY/SY3pnQdwQzI/AAAAAAAABbs/0AEX9DTG0tM/s800/P5120001.JPG

Ended up finding a used tranny with 15K miles and had it shipped to me. Removed the bad tranny and installed the used one. Figured I tear open the bad one to see what happened and this what I found. Noticed on the ring gear, the cage of the needle bearings. I believe that failed causing the bearings to lodge themselves between the ring gear and the od planetary gears and then the implosions started...

http://lh5.ggpht.com/_oJh5dgNo-iY/SY3pmhWZsMI/AAAAAAAABbc/uM2mXQmMOEo/s800/OD%20Planetary%20gear.JPG

http://lh6.ggpht.com/_oJh5dgNo-iY/SY3pnMJ8YZI/AAAAAAAABbk/aKKb_0y_AyI/s800/OD%20ring%20gear.JPG

[Cackalak Han]

Thanks for this post. I believe my Tacoma uses this same transmission and I've got 120k on it. Hopefully, mine lasts a bit longer.

Did you rebuild that transmission?

[dyogim]

Did you rebuild that transmission?

I was going to but, the time and cost was not worth it. For someone who has never rebuilt a tranny, it would've been best to have one built by John at IPT Trans.

[98dango]

thay last a good long time but you need to service them. outher wise run it and yes thay can be spendy to fix.