The question you ask is too involved for a proper answer. You may want to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
I need to replace the rack and pinion in a 1993 Nissan Altima.
get another one and put it in
A good 4 hours
yes as long as both engines are the same
The 1993 Nissan Maxima transmission is interchangeable with any 1991 through 1995 Nissan Maxima models. The transmission mounts might be slightly different.
you don't
no
Look in your owner's manual. put the key in the door
yes but its internal
2
one
Replace the right axle. Get a book on the car at the library and folow the plan to change it .