Courtesy of MarkC


Removal Procedure


Disconnect the negative battery cable.
Remove the accessory drive belt. Refer to Drive Belt Replacement .
Remove the upper front bolt.
Raise and suitably support the vehicle.
Remove the front engine splash shield.
Remove the radiator support access panel.



Loosen the rear generator bracket from the engine.
Remove the top bolt.
Remove the front lower mounting bolt.
Remove the lower rear mounting bolt.
Remove the upper rear mounting bolt.
Remove the duct from the back of the generator.
Disconnect the following electrical connections:
Regulator
Battery output
Heated windshield (if equipped).
Remove the front generator/ A/C bracket.
Rotate the generator and remove.
Installation Procedure




Install the generator.
Install the front generator/ A/C bracket.


Connect the following electrical connections:
Regulator
Battery output Tighten
Tighten the battery output cable to 20 N·m (15 lb ft).

Heated windshield (if equipped).
Install the duct to the back of the generator. Align the duct to the generator black duct.
Install the upper rear mounting bolt. Tighten
Tighten the upper rear mounting bolt to 47 N·m (35 lb ft).

Install the lower rear mounting bolt. Tighten
Tighten the lower rear mounting bolt to 47 N·m (35 lb ft).

Install the front mounting bolt. Tighten
Tighten the front mounting bolt to 47 N·m (35 lb ft).

Install the rear generator bracket bolt to the engine. Tighten
Tighten the bracket mounting bolt to 47 N·m (35 lb ft).

Install the upper front bolt.
Install the radiator support access panel.
Install the front engine splash shield.
Lower the vehicle.
Tighten the upper front bolt. Tighten
Tighten the upper front bolt to 47 N·m (35 lb ft).

Install the accessory drive belt. Refer to Drive Belt Replacement .
Connect the negative battery cable. Tighten
Tighten the negative battery cable bolt to 15 N·m (11 lb ft).

There is no such thing as a NorthStar with a generator; you must mean alternator.

You need to read the FSM. It is referred to as a "Generator" and has been for several years as I recall. Not sure why GM has gone back to that terminology, but they have. Perhaps because it generates electricity?

Yeah I hate to say it but the manuals have gone back to callng it a generator.
I think it may have to do with control or something or maybe they just prefer the terminology.

I don't split hairs, I just call it whatever hits me when I am talking about one.
Technically there is a difference I guess but who knows?

Actually a generator and an alternator both generate alternating current. The generator rectifies it to DC with a commutator and an alternator uses solid state diodes for the same job. I stand corrected. GM marches to a different drummer.