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Front Suspension Systems

Front Suspension Systems. Coil Springs. Coiled bar of spring type steel Absorbs road shock & carries vehicle weight Linear- rate – equally spaced coils, have constant spring rating Variable-rate – tapered, unequal spacing, act differently under various loads. Torsion Bars.

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Front Suspension Systems

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  1. Front Suspension Systems

  2. Coil Springs • Coiled bar of spring type steel • Absorbs road shock & carries vehicle weight • Linear- rate – equally spaced coils, have constant spring rating • Variable-rate – tapered, unequal spacing, act differently under various loads

  3. Torsion Bars • Used in place of coil springs, usually 4WD trucks • Bar twists, resisting movement of lower control arm

  4. Ball Joints • Pivot points allowing steering knuckle movement • Reduced steering effort • Improved ride quality

  5. Ball Joint Construction • Ball & Socket design • Ball seat is cushioned • Spring loaded

  6. Load Carrying Ball Joints

  7. Tension Loaded Ball Joint

  8. Compression Loaded Ball Joint

  9. Non-Load-Carrying Ball Joint

  10. Stabilizer Bar

  11. Strut Rod • Connected to frame & lower control arm • Controls fore & aft movement of control arm • May provide for caster adjustment

  12. I-Beam Suspension • Solid axle connecting both front steering knuckles • Used on H.D. trucks

  13. Twin I-Beam

  14. Short & Long Arm Suspension • Provide for an independent suspension system • Camber & caster angles remain fairly constant over bumps • Arms connected to frame with rubber bushings

  15. Upper Control Arm Design

  16. Type 1 Design

  17. Type 2 Design

  18. S.A.L.A. Travel

  19. MacPherson Strut Suspension

  20. Modified Strut Design

  21. Modified Strut Design

  22. Double Wish Bone Design

  23. Independent Front 4WD

  24. Independent Front 4WD

  25. Solid Front 4WD

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