If your brakes are acting up - maybe warning lights, pulling to one side, or strange noises - these cciyu brake calipers might be your solution.
This set includes both rear calipers (18B4644 for driver side and 18B4645 for passenger side) with brackets already installed.

They fit a ton of GM vehicles including Buick Allure 2008-2009, Century 2004-2005, LaCrosse 2008-2009; Chevrolet Impala 2000-2010, Monte Carlo 2000-2007; Oldsmobile Intrigue 1998-2002; and Pontiac Grand Prix 1997-2003.

The specs are solid: single iron piston with 1.5-inch diameter, M10 x 1.5 bleeder and inlet ports.

These aren't cheap knockoffs - they're built to meet or exceed OEM standards with advanced technology that ensures consistent brake power output and reliability.
The installation is straightforward if you're comfortable with brake work, but as always with safety components, professional installation is recommended if you're not 100% confident.
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When your old calipers are sticking, leaking, or just not performing right, replacing both rears at once ensures balanced braking and peace of mind.
For the price of getting both calipers versus buying separately, this set represents solid value.
Just double-check your specific vehicle model and year before ordering to ensure proper fitment.

Your braking system is too important to compromise on!