Why do brakes need to be replaced in the first place?

Friction material on the brake pad contacts the rotors to slow the vehicle. In time, that material wears away and the pads must be replaced. Sometimes the rotors and calipers must also be replaced.

What’s the squealing sound I hear when braking?

Over time, wear indicators in brake pads may contact the rotors’ surface when braking, resulting in a metallic squealing sound. Vehicles equipped with wear sensors may also provide an alert that minimum brake pad thickness has been reached.

What if it’s more of a grinding sound?

If all the friction material has been worn away, the metal backing plate of the brake pad will be the material in contact with the rotor during braking. It causes a grinding sound and braking performance is often diminished.

Why do the brakes seem to pulsate when stopping?

It may be due to worn brake pads, unevenly worn rotors or unevenly worn tires. Have the pulsation diagnosed as soon as possible to avoid the possibility of greater brake system wear or damage.

What about vibrations or shaking in the steering wheel?

This is more serious than pulsation. If the brakes are very worn or the rotors are unevenly worn, there can be a significant vibration or shaking in the steering wheel when braking. It may mean brake service is needed immediately.

Gm Genuine Parts 178 0911 23135220 Power Brake Booster Assembly

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚦 Stop Safe, Drive Confident: GM Power Brake Booster, Your OEM Edge

BUILT TO LAST - Machined exterior and robust materials ensure long-term durability under pressure.
BACKED BY GM ASSURANCE - Tested rigorously and trusted by professionals for consistent performance.
SEAMLESS COMPATIBILITY - Designed specifically for Escalade, Silverado, Tahoe, Sierra, Yukon & more.
RESTORES PEAK BRAKING POWER - Feel the confidence of GM-approved stopping strength every time.
TRUE OE QUALITY RELIABILITY - Engineered to exact GM specs for flawless fit, form, and function.

The GM Genuine Parts 178-0911 Power Brake Booster Assembly is a factory-recommended replacement designed to restore and enhance braking power in GM SUVs and trucks. Manufactured to exact GM OE specifications, it guarantees perfect fit and reliable performance, ensuring your vehicle’s braking system operates with maximum efficiency and safety.

Specifications

ASIN	B00S0HC7O2
Best Sellers Rank	#621,013 in Automotive ( See Top 100 in Automotive ) #306 in Automotive Replacement Power Brake Systems
Brand	GM GENUINE PARTS
Customer Reviews	4.0 4.0 out of 5 stars (53)
Date First Available	January 9, 2015
Exterior	Machined
Item Weight	9.75 pounds
Item model number	178-0911
Manufacturer	ACDelco
Manufacturer Part Number	23135220
Model	Escalade,Silverado,Suburban,Tahoe,Sierra,Yukon,Yukon XL
OEM Part Number	23135220
Product Dimensions	16.8 x 12.3 x 12.3 inches

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