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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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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
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
Live-Axle with Coil Springs • The upper control arms control lateral movement (side movement) • The lower control arms control differential torque (wind up)
“A” shaped control arms mounted at an angle, called semi-trailing control arms Used on many sports cars. Handles cornering loads better
Multilink Independent Rear Suspension Note Hydraulic mount Superior noise and vibration dampening
Semi-Independent • The axle assemble twists, gives semi-independent effect • The axle assembly acts as a sway bar • Track bar controls side movement
Tracking Bar with Diagonal Brace • Both prevent lateral (side) axle movement.
Independent Rear with MacPherson Struts • Caster & Toe adjustable • Improved ride quality, steering control, tire life, & traction • Lighter
Independent Rear with Shocks • Toe is adjustable • Camber is not
Transverse Mono Leaf Spring • Fiberglass • Lightweight • Compact • High tension
Transverse Mono Leaf Spring TieRods Trailing Arm
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