Santhuff Aluminum Body Front Shock Adjustment Procedure

    1. Set strut shock in vertical position
    2. Turn top adjustable 3/8" hex nut clockwise until nut stops.
    3. Turn top adjustable nut counter-clockwise 3 turns.
    4. If double adjustable, turn lower bump adjuster hex knob fully clockwise. Then turn out counter-clockwise 10 clicks.*
    5. Stroke strut shock 5 or 6 times to prime the valving and avoid cavitation (After laying horizontal the fluid is displaced).
    6. Turn top adjustable nut fully clockwise until nut stops again. At that position the strut shock is at it's full firm rebound (extension) position.
    7. Turn lower bump adjuster hex knob clockwise until it stops to bring it back to the full firm (compression) position.
    8. The strut shock is at it's softest position on extension when the top adjustable nut is turned 3 1/4 turns counterclockwise. O-ring damage could occur if turned any more than 3 1/4 turns.
    9. The strut shock is at it's softest on the bump (compression) when the adjuster hex knob is turned counter-clockwise till it stops.**

Baseline Setting for Struts and Front Shocks on Drag Radial Cars

The following adjustments are based with all sweeps or clicks starting from a full tight adjustment (clockwise) position. Start the fronts set at 1 turn or 6 sweeps on the rebound adjustment and 6 clicks on the compression setting.

Aluminum Body Front Shock Baseline Settings

Cars HorsepowerOn Top (extension)Bottom (compression)

3000 HP1/2 turn12 clicks
2500 HP

3/4 turn

12 clicks
2000 HP1 turn10 clicks
1500 HP1 1/2 turn8-9 clicks
1000 HP2 turns8 clicks
500 HP3 turns7 clicks

*Bump is same as a single adjustable shock at 10 clicks from full tight

**If trying to delay return of front weight transfer start at 6 clicks from full tight. 8 or 9 clicks is also a good tight adjustment to use for a car that wheelstands violently and may help save your headers.

Printed from

Santhuff Engineering
12886 County Road 1394
Sinton, Texas 78387