Not that I know of.
Did the rear main in my 69 not too long ago, in the car.
351W, 4-speed, PS
Put the cat up on 4 jack stands for working room.
Drained the oil and remove the oil filter.
Coolant is up to you. I drained it to take the lower hose off and then flush and fill.
Took the front tires off.
Dropped the steering center link down by taking the passenger side idler off the frame and taking the control valve loose from the pitman arm.
Did NOT disconnect the power steering hoses.
Unbolted the cross member and took it off of the car.
Put plastic down on the floor under the front of the car.
Removed the oil pan bolts and carefully popped it loose from the block.
Sat it on the floor under the engine and took the oli pump off.
Let it sit and drip for the night!
Wiped everything down and pulled the pan out.
Carefully broke all the main bolts loose.
Backed them all out about 1/4 turn.
Took the rear main cap bolts out and wiggled the cap off.
Using a thin punch, I tapped on one side of the seal in the block to push it out.
After having issues getting the seal to move, I used a bigger hammer and a bit more force - the seal spun out as planned.
Oiled the crank edge of the new seal half and spun it up into place, leaving about 1/4" sticking out on one side.
Oiled the crank edge of the other half of the new seal and put it in the cap, leaving one end out to "mate" with the other seal.
A touch of Black RTV on the exposed ends of the seals and put the cap on, being carefull to get the ends in the grooves.
Spun the main bolts up into place and snugged them down to get the cap to seat in place.
Let the blood get back into my fingers and arms!
Using the sequence and specs in the manual (or Chiltons), torque the main bolts down.
Check all the main bolts torque for good measure.
Cleaned up the oil pump and pan.
Bolted the oil pump back in place with a new gasket, making sure to get the shaft aligned.
New gasket sealed on the oil pan and the pan goes back in, geting all the bolts in and finger tight.
Tighten down the oil pan, being carefull not to over tighten them and keep them evenly tightened (pain in the butt).
Reinstall the cross member.
Bolt the steering center link back into place on both ends.
Make sure the drain plug is in the oil pan and tight.
Remove plastic from the floor and clean up any messes.
Look for any wet/oil spots on the pan/block/bell housing.
Make sure the bottom of the engine is clean/dry.
Put the tires back on.
Take the Cat off of the jack stands.
Put on a new oil filter and put 5 quarts of fresh oil in.
If coolant was drained, close petcock, install hoses and check clamps.
Refill with a 50/50 mix of anitfreeze and water.
Check for any water/oil drips under the car.
Start the Cat and let it warm up.
Keep an eye on the antifreeze level and add as needed.
Check under the Cat for signs of oil leaks.
If everything went well, there will be no oil leaks.
My oil pan was seeping a bit, but a re-tightening of the pan bolts stopped that leak.
My rear main has been dry ever since.
Good Luck!