67 twin turbo dart

Waiting to call Kent this coming week for a new rear main seal, but with this being a two piece rear main, anyone know if there is room with a gear drive to just lift the rear of the crank to access without taking the front of the motor apart to get to the idler gear and remove it to lift the crank up a bit. Which then will mean having to degree it in again if the cam gear moves.
Thoughts??