What is the source of that document? It is not from the "Pontiac Limited Warranty and Owner Assistance Information" booklet that I have. This is from my booklet:
The powertrain is covered for 5 years or 100,000 miles,
whichever comes first, except for other coverages
listed here under “What is Covered” and those items
listed under “What is Not Covered” later in this section.
Engine: Cylinder head, block, timing gears, timing
chain, timing cover, oil pump/oil pump housing,
OHC carriers, valve covers, oil pan, seals, gaskets,
turbocharger, supercharger and all internal lubricated
parts as well as manifolds, flywheel, water pump,
harmonic balancer and engine mount. Timing belts are
covered until the first scheduled maintenance interval.
Transmission/Transaxle/Transfer Case: Case,
all internal lubricated parts, torque converter, transfer
case, transmission/transaxle mounts, seals, and
Drive Systems: Final drive housing, all internal
lubricated parts, axle shafts and bearings, constant
velocity joints, axle housing, propeller shafts, universal
joints, wheel bearings, locking hubs, front differential
actuator, supports, front and rear hub bearings,
seals and gaskets.