SS put in a higher grade bolt, as I did when he posted this, if Ford warrantied it they would just put in the same lower grade one so not worth the bother.
Since you are making that much torque and drag racing I advise taking off the battery mount and look under the transaxle mount cover. There is a gap on the front and rear about 1/8" and 1/4" on top between the rubber covering the aluminum and the steel mount top which allows far to much movement. I sent SS some parts to play with, not sure done yet, I would make a filler for that area to stop things from moving around so much.
I make a whole new top as moved the battery to the rear of the car and did not need that strong pieced just for the mount so made a lower weight one.
This is an easy mod I feel really should be done, I run 225 RA1 track tires, Quaife LSD and the Cobb rear mount and have no axle hop at all and barely any torque steer ever.
The Cobb does allow some movement but not bad once the transaxle mount was made none of my close fitting parts like DP, exhaust, touch any longer when I get on it