Automatic trans drive shaft seal leak

2009 4 cylinder automatic / regular cab.

Seal at the driveshaft seems to have a one drop leak when parked.
I have made several road trips lately and the fulid is spun under the cab.
Nothing unusually severe...

Question: Do Our trucks have a "CVT Transmission"?

I purchased a 24 oz bottle of "Lucas Transmission Fix"
States on bottle "Completely Stops Most Seal Leaks"

Also: states "Smaller transmissions (Compact or Sub Compact vehicles) Use 12 oz."

This is a 24 oz bottle and I'm about a quart low on fluid so I had intended to pour in the
Full 24 oz in the tranny...
Then I may wish to drain & fill in January 2017.

What would y'all recommend?

 

I wouldn't use stop leak .
The stuff turns to acid when it gets hot and kills your transmission fluid .

POP the driveshaft off and try to find out why the seal is leaking .
There could be play in the tailshaft bushing or the seal could be hard as rock .
https://www.tacomaworld.com/threads...sions-write-up-your-4-speed-automatic.325531/

 

Thank you @gearcruncher !

I had hoped you would guide me to the answer... Without fail.
I will do some research first.
You are an awesome member here, & I appreciate it!

 

Although this TSB is NOT for your truck , there are some cool step by step directions to assist you .
Have a peek at this link
https://www.tacomaworld.com/threads/new-tsb.45728/

 

A quick follow-up.
I had to make a couple more trips before addressing the issue.
I can appreciate gearcruncher' input and advice.
I went over to the dealer service and got a quote of $350- for the replacement seal installed.
I made an appointment for the following day. + a drain & fill.
I walked out the door with a $421.00 invoice for a $20- part.
I'm good with that, as I didn't have to schedule or make arrangements elsewhere.

The new seal is different in appearance than the old seal and no leaks.
At 83,500 miles it was due a drain & fill, and is shifting smoothly.

I know it was not a difficult task, but I feel better knowing I didn't screw it up.

Thanks gearchruncher