On a 10 bolt gm rear end how to deciper the stamping numbers to tell what the gear ratio is the tube on the front passenger side reads BP 1204G1?

Where is the 1997 Dodge Grand Caravan fuse panel? The dinger for the door ajar - does it have a fuss - which one is it can't find OM? How much does it cost to replace an alternator in a 350z? What is the use of a shock absorber? What is purchase specification form? What causes the motor error on medtronic pump? 2006 liberty timing chain or belt? How do you replace the lighter fuse in a 1998 infiniti Q45? Where would you add transmission fluid for a 2000 Saturn sl1? How do you change low beam bulb in 2001 vito? What do you do if you replaced the alternator and still there is no power from it? What are torque setting for C24 Nissan cylinder head? D16a in 1999 civic ex no spark but gas? Would a clogged catalytic converter cause the transmission to shift hard? Is there a fuel pump access panel in a 1996 Saturn? What type of brake system has a floating disc and a fixed caliper? Who invented biofuel? Where is the ECT sensor located on a 2001 Chrysler Town and Country? How to change rear brake light 2007 Hyundai Santa-Fe? Where can one buy tires online?

On a 10 bolt gm rear end how to deciper the stamping numbers to tell what the gear ratio is the tube on the front passenger side reads BP 1204G1?