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Rear Suspension Systems

Rear Suspension Systems. Live-Axle. Live-Axle with Leaf Springs (Hotchkiss). Leaf springs control side sway A large amount of un-sprung weight Take up a lot of space. Rear Axle Torque Reaction. Axle Wind-up. Note: The axle is mounted off center on the spring Helps prevent axle wind-up.

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Rear Suspension Systems

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  1. Rear Suspension Systems

  2. Live-Axle

  3. Live-Axle with Leaf Springs (Hotchkiss) • Leaf springs control side sway • A large amount of un-sprung weight • Take up a lot of space

  4. Rear Axle Torque Reaction • Axle Wind-up

  5. Note: The axle is mounted off center on the spring Helps prevent axle wind-up

  6. Also……. Mounting one rear shock in the front of the axle and one behind the axle helps to reduce wind up and axle tramp OFF-SET SHOCK DESIGN

  7. Live-Axle with Coil Springs • The upper control arms control lateral movement (side movement) • The lower control arms control differential torque (wind up)

  8. Trailing Arm

  9. “A” shaped control arms mounted at an angle, called semi-trailing control arms Used on many sports cars. Handles cornering loads better

  10. Multilink Independent Rear Suspension Note Hydraulic mount Superior noise and vibration dampening

  11. Rear Suspension SystemsOn FWD Vehicles

  12. Semi-Independent • The axle assemble twists, gives semi-independent effect • The axle assembly acts as a sway bar • Track bar controls side movement

  13. Tracking Bar with Diagonal Brace • Both prevent lateral (side) axle movement.

  14. Independent Rear with MacPherson Struts • Caster & Toe adjustable • Improved ride quality, steering control, tire life, & traction • Lighter

  15. Independent Rear with Shocks • Toe is adjustable • Camber is not

  16. Camber & Toe Adjustments

  17. Transverse Mono Leaf Spring • Fiberglass • Lightweight • Compact • High tension

  18. Transverse Mono Leaf Spring TieRods Trailing Arm

  19. Double Wishbone • Torque loads create bushing and control arm deflection during braking, corning, acceleration and deceleration. • This causes a toe change to enhance straight line stability • Toe change during corning leads to quicker and moreresponsive steering

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