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Tyre Ratings & Best Tyres for Road Use — With Real Vehicle Examples

1. Tyre Ratings: What to Look For These ratings appear on the tyre sidewall and help you judge quality, safety, and performance. Treadwear Rating This tells you how long a tyre is likely to last. The higher the number, the longer it should last. A treadwear of 400 means the tyre will last about 4 times longer than a baseline test tyre. Traction Rating This shows how well the tyre grips on wet roads. The grades are: AA (excellent), A (good), B (moderate), and C (poor). Temperature Rating This tells you how well the tyre resists heat. High heat resistance means the tyre won’t overheat and burst at high speeds. Grades: A (best), B, and C. Load Index This number shows how much weight one tyre can safely carry. You must match this to your vehicle's weight class. Speed Rating This tells you the maximum speed the tyre can handle safely. For example, H = 210 km/h, T = 190 km/h, etc. 2. Best Tyres for Personal Vehicles (By Model) a. Toyota Corolla / Honda Civic Recommended Tyre: Michelin Pr...
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Steps involved dismantling the differential unit



Dismantling a differential drive requires careful planning and execution to ensure safety and precision. This guide provides a general overview of the process, applicable to most vehicles.

Tools Required

1. Socket and wrench set

2. Screwdrivers

3. Pry bar

4. Hammer and punch

5. Jack and jack stands

6. Gear puller

7. Drain pan

8. Torque wrench

9. Marking tools (paint or marker)


Step-by-Step Process

1. Safety First

  •  Park the vehicle on a flat surface. 
  • Engage the parking brake and disconnect the battery.
  • Wear safety gloves and goggles.

2. Lift the Vehicle

  • Jack up the vehicle and secure it on jack stands.
  • Ensure the wheels are off the ground for easy access to the axle and differential.

3. Drain the Differential Oil

  • Place a drain pan under the differential.
  • Remove the differential cover bolts and allow the oil to drain completely.
  • Clean the mating surfaces of the cover and housing.

4. Mark the Components

  • Use a marker or paint to mark the relationship between the driveshaft, pinion flange, and axle shafts.
  • This ensures proper reassembly.

5. Remove the Driveshaft

  • Disconnect the driveshaft from the differential by removing the bolts at the pinion flange.
  •  Secure the driveshaft out of the way.

6. Detach the Axle Shafts

  • For full-floating axles, remove the axle shaft retaining bolts and pull the shafts out.
  • For semi-floating axles, remove the brake components and the C-clips inside the differential housing.

7. Remove the Differential Carrier

  • Unbolt the carrier bearing caps.
  • Carefully pry out the differential carrier assembly using a pry bar.
  • Keep track of shims and bearings for reassembly.

8. Disassemble the Carrier

  • Mark the orientation of the ring gear to the carrier.
  • Unbolt and remove the ring gear.
  • Inspect the bearings, gears, and seals for wear or damage.

9. Inspect the Pinion Gear

  • Remove the pinion nut and pull out the pinion gear using a gear puller.
  • Inspect the pinion bearings and races.

10. Clean and Inspect All Components

  • Use a cleaning solvent to remove grease and oil.
  • Inspect the gears, bearings, and housing for cracks, chips, or excessive wear.

Reassembly

1. Reassemble in reverse order, ensuring all components are properly aligned and torqued to manufacturer specifications.

2. Replace any worn-out components and seals.

3. Refill with the appropriate differential oil.

Tips

1. Refer to the vehicle’s service manual for specifications.

2. Work systematically to avoid missing steps or components.

3. If unsure, consult a professional mechanic.

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