Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Lifting and Jacking the Vehicle
Floor Panel Tunnel Panel Front Brace - Remove - Floor Panel Tunnel Panel Front Brace Replacement
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Exhaust Muffler (1) - Remove - Exhaust Muffler Replacement (LT4)
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Exhaust Intermediate Underbody Heat Shield (2) - Remove - Exhaust Intermediate Underbody Heat Shield Replacement
Floor Panel Number 2 Cross Bar Reinforcement - Remove - Floor Panel Number 2 Cross Bar Reinforcement Replacement
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NOTE:
Before removing the propeller shaft from the vehicle, paint or scribe references marks on the transmission flange to the propeller shaft and the rear differential drive flange to ensure minimal driveline system imbalance.

Mark (2) the relationship of the propeller shaft flange (3) and the output flange (1) of the transmission.
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Mark (3) the relationship of the propeller shaft flange (1) and the rear axle pinion flange (2).
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NOTE:
Ensure that the propeller shaft is secured to the jack stand.

Support the propeller shaft with a suitable jack stand.
Remove the three front propeller shaft bolts (2) and the nuts (1).
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Remove the three rear propeller shaft bolts (1) and the nuts (2).
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Remove the two propeller shaft bearing support bolts (1).
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CAUTION:
Care should be taken not to use sharp or pry tools when separating the propeller shaft coupler from the drive flange. Damage to the coupler could result and replacement of the entire propeller shaft would be required.

NOTE:
It may be necessary to apply a small amount of penetrating lubricant or WD-40® to the area shown (1) to aid in separation of the propeller shaft coupling.

If the propeller shaft does not easily separate from the differential, transmission or transfer case, use a rubber mallet to gently tap the locations (1) on the rubber coupling shown above to separate.
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Remove the propeller shaft (1) from the vehicle.