Your best bet is to have someone do it for you. But if you insist then I insist that you buy a Haynes manual.
Chevelle Hallback was born on 1971-09-03.
No.
take the chrome sill plate off and then you can pull out the kick panel from the bottom of it.
yes
you dont
You need to purchase a book, possibly a Haynes Manual. it is more detailed than could be explained here.
the chevelle
it depends on what color or engine you have in it. if it is a 454 with colors that you wont usually see on a 1970's chevelle without a paint job just a factory color, then you might have a rare 1971 chevelle
14"
1971 Chevy chevelle SS
either remove the engine or lift engine up high enough to get to all the bolts on the pan and enough clearance to get it out from the suspension.