no. not enough room to remove the bolt. IMHO.

you want to slide trans back so you can install & torque bolts.

I suggest R&R the trans and do any seals/gaskets while your at it.

then you can match up the flex plate to the TC for correct size and bolt spacing.

I paint 1 ear of flex while on the TC to get them right the first try bolting them up.

nothing worse than get to the TC bolts and have to spin the TC 2-3 times to get it lined up correct or find you have a 10" when you need the 11" flex plate....

good luck.