Overhauling a differential and final drive was routine for most mechanics when I entered the motor trade more than 40 years ago but with the introduction of CAD and CAM and superior oils it has become a lost art reserved for specialists.
I can assure you it is not a task for an beginner without experience. If you have to ask how to proceed it would be very unwise to consider doing the job yourself. You should at least have closely observed a couple of final drive overhauls at first hand because the hypoid rear axle can be a temperamental thing and howl like a banshee if the tooth meshing isn't precise and sometimes in the case of reclaimed gears can howl even if the meshing is correct.
You will require bearing extractors and a press with various mandrels and a deal of experience to recognise what is worn and what is not and a great deal of patience when measuring and selecting shims and setting bearing preloads. You will also require a dial indicator gauge and a small micrometer, a tin of engineers blue or orange and a number of service tools, most of which can be fabricated yourself.
I suggest you begin researching the subject by reading a couple of books. The Motor Vehicle by Newton, Steeds and Garret is a good place to begin though Modern Cars and Commercial Vehicles by A W Judge is many years old but is written for people converting existing skills into those required for those new-fangled automobiles.
Answers & Comments
Overhauling a differential and final drive was routine for most mechanics when I entered the motor trade more than 40 years ago but with the introduction of CAD and CAM and superior oils it has become a lost art reserved for specialists.
I can assure you it is not a task for an beginner without experience. If you have to ask how to proceed it would be very unwise to consider doing the job yourself. You should at least have closely observed a couple of final drive overhauls at first hand because the hypoid rear axle can be a temperamental thing and howl like a banshee if the tooth meshing isn't precise and sometimes in the case of reclaimed gears can howl even if the meshing is correct.
You will require bearing extractors and a press with various mandrels and a deal of experience to recognise what is worn and what is not and a great deal of patience when measuring and selecting shims and setting bearing preloads. You will also require a dial indicator gauge and a small micrometer, a tin of engineers blue or orange and a number of service tools, most of which can be fabricated yourself.
I suggest you begin researching the subject by reading a couple of books. The Motor Vehicle by Newton, Steeds and Garret is a good place to begin though Modern Cars and Commercial Vehicles by A W Judge is many years old but is written for people converting existing skills into those required for those new-fangled automobiles.
Good luck!