New engine? Dealer. Used engine? Salvage yard. There are also some places that sell rebuilt engines. A Google search is in order.
go to the Chevrolet dealer and buy only syncromesh transmission fluid. do not add anything else it will ruin your transmission.
== == Go to your local Chevrolet dealer's parts department and ask the parts counter man. He will point out the correct fluid on the shelf, and then you buy it, and put it in your car. Problem solved.
go to an auto parts store and buy a chiltons or a haynes. It will have it in there under the electrical section.
rebuild the motor or buy a crank kit and install it.
First, there is no Chevrolet Cavalier 2006, they stop selling it in 2005 because they replace it by the Chevrolet Cobalt. Anyway, just buy a Haynes "do-it-yourself" repair manual in any large store like Wal-Mart, it cost like 20$ and it's very easy to follow.
open the hood and look up, it will be right in front of you. If that does not work, you can buy a haynes or chiltons manual.
Go to your local Canadian tire and buy a plug that goes from stereo harness to your stock harness!
NO... unless you are a master mechanic and an artist and have deep pockets to buy many parts....
this question is very simple. Buy a owner manual for your car.
if engine has 4 plugs buy 4 if engine has 6 plugs buy six
Chevy Cavalier is a shity car. Ditch and buy something of value. Then sell your Mama on e-bay. I hear she is hot.
Go to an auto parts house or a bookstore and buy a Haynes Manual.