DBA 4000 Series T3 Slotted Rear Brake Rotor - 2005 Pontiac GTO (DBA42021S)

DBA 4000 Series T3 slotted rear brake rotor, part number DBA42021S, for the 2005 Pontiac GTO.

• 4000 Series T3 uni-directional T-slot rotor
• Position: Rear
• Slotted friction face, no cross drilling
• Sold individually (one rotor)

Fitment: 2005 Pontiac GTO, rear axle. Confirm fitment by year, trim, and brake package before ordering.

The T3 T-slot pattern sweeps gas and pad debris off the friction surface without the stress risers that drilled holes introduce, which is why it is the pattern DBA uses for street and heavy-use applications. Replace rotors in axle pairs and fit fresh pads at the same time so both sides bed evenly.

The GTO carries a lot of weight on a short wheelbase, and the rear axle does more of the work than most drivers expect once the car is loaded or driven hard. A slotted rear rotor keeps the pad face clean so rear bite stays predictable instead of fading off halfway through a hard stop. Because the T-slot face is uni-directional, order the matching rotor for the opposite side and fit each one on its correct side of the car. Bed the new rotors and pads in with a series of moderate stops before any hard driving.

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