What are the essential steps to take before checking for assembled lateral runout (LRO) in brake discs on 2003 Cadillac CTS?

Brake disc thickness variation measurement must come before LRO tests because excessive readings can develop brake vibration. When the assembled LRO goes beyond its permitted limits it tends to produce thickness changes in the brake disc which start at 4,800-11,300 km (3,000-7,000 mi). Three validated ways to fix assembled LRO include the indexing method for small runout issues (0.001 to 0.005 inches), correction plate placement (0.009 inch and above), and brake disc refinement during on-vehicle lathe work. Other parts of the system need testing when LRO methods fail to fix the brake disc problem.

OEM 2003 Cadillac CTS Brake Disc

Disc Rotor

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2003 Cadillac CTS Rotor, Front Part Number: 19303812
$97.41 MSRP: $176.31
You Save: $78.90 (45%)
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Product Specifications
- Other Name: Rotor, Front Brake; Disc Brake Hardware Kit; Brake Rotor; Rotor, Front And Rear Wheel Brake
- Position: Front
- Replaces: 18060682
- Item Weight: 20.60 Pounds
- Item Dimensions: 3.2 x 13.7 x 12.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 19303812
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Cadillac CTS Submodels:
- Base, Luxury, Luxury Sport | 6 Cyl 2.8 L GAS, 6 Cyl 3.2 L GAS, 6 Cyl 3.6 L GAS
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2003 Cadillac CTS Rotor Part Number: 15240719
$91.15 MSRP: $178.45
You Save: $87.30 (49%)
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Product Specifications
- Other Name: Rotor, Front And Rear Wheel Brake; Brake Rotor
- Position: Rear
- Replaces: 25693146
- Item Weight: 15.20 Pounds
- Item Dimensions: 15.4 x 14.8 x 3.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 15240719
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Cadillac CTS Submodels:
- Base, Luxury, Luxury Sport | 6 Cyl 2.8 L GAS, 6 Cyl 3.2 L GAS, 6 Cyl 3.6 L GAS
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2003 Cadillac CTS Rotor Part Number: 88964102
$124.37 MSRP: $223.07
You Save: $98.70 (45%)
Product Specifications
- Other Name: Rotor, Front Brake; Disc Brake Hardware Kit; Brake Rotor; Rotor, Front And Rear Wheel Brake
- Position: Front
- Replaces: 18060686
- Item Weight: 23.90 Pounds
- Item Dimensions: 16.0 x 14.7 x 3.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 88964102
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Cadillac CTS Submodels:
- Base, Luxury, Luxury Sport | 6 Cyl 2.8 L GAS, 6 Cyl 3.2 L GAS, 6 Cyl 3.6 L GAS

2003 Cadillac CTS Brake Disc

With a comprehensive array of OEM 2003 Cadillac CTS Brake Disc, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2003 Cadillac CTS Brake Disc are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2003 Cadillac CTS Brake Disc Parts and Q&A

Q: What are the essential steps to take before checking for assembled lateral runout (LRO) in brake discs on 2003 Cadillac CTS?
A: Brake disc thickness variation measurement must come before LRO tests because excessive readings can develop brake vibration. When the assembled LRO goes beyond its permitted limits it tends to produce thickness changes in the brake disc which start at 4,800-11,300 km (3,000-7,000 mi). Three validated ways to fix assembled LRO include the indexing method for small runout issues (0.001 to 0.005 inches), correction plate placement (0.009 inch and above), and brake disc refinement during on-vehicle lathe work. Other parts of the system need testing when LRO methods fail to fix the brake disc problem.