Hmm those bolts are only spec'd to be torqued to 17-20 ft-lbs so they shouldn't be too hard to get out....Unless someone previously made sure they were 'real tight'
It can be done with a box/open end wrench, even with a 1/4" driver if you have one small enough, but getting the torque on that one is not easy...
If you need any other tranny r/r help let me know...I've done it on mine.
Hope you have the front of the car high enough in the air to get the tranny out
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