transmission Mount Center Bolt

I just replaced the Trany mount of my 2004 pre runner v6 189000 miles. My question is how tight should be the big center bolt ? Should it be a little loose so the Trany Mount rubber can have some play?
Here are the pics of old and new mounts.

 

I'm about to have my transmission mount done, what brand mount did you use? Do you happen to have a part number if you used OEM?
Also what did you end up torquing that bolt too?
Thanks!

 

that bolt in the center has no torque specifications, it's a fail-safe. when the rubbers break, that bolt keeps the tranny from shifting away from the mount. it doesn't need to be tight. just needs to not come off.

 

http://m.ebay.com/itm/141639866304


This is the one I bought. Working great so far after 10000 miles


UPDATE: after 50000 miles and the mount still working great (11-30-17)

 

Thanks man!

 

Why did you replace the old mount? Vibrations? Did the new mount make a big difference?

 

There was no problem with the taco. I had just bought the truck with 184000 miles and decided to replace a few parts like , transmission mount, rotors, brake pads, timing belt, water pump, plugs, wires, diferencial fluid, transmission fluid.
I drive 120 miles a day so I better keep the taco in good shape.

Next thing I'm going to do is replace ball joints and rods. I am not a mechanic, i just watch a lot of YouTube videos before doing some work in my truck.