Manual

DIAL INDICATOR

ATTACHES HERE

DIAL INDICATOR

ATTACHES HERE

THUMBSCREW

( LOOSEN FOR 1 DIAL INDICATOR,

TIGHTEN FOR 2 DIAL INDICATORS.

MEASURING SCALE

TOWER

PLATE

THUMBSCREW

(LOOSEN TO ADJUST THE CROSS

BAR UP AND DOWN. THEN

TIGHTEN TO KEEP IN PLACE.)

1. Determine weather you would like to set Bump Steer on Jack Stands or

at Ride height.

2. Position car at desired height.

3. Attach Bump Plate to Hub assembly.

4. Jack suspension to simulate proper front end geometry at ride

height (always start Bump Steer procedure from this position).

5. Place Bump Steer tower assembly so dial indicator(s) is

approximately compressed half of its travel.

6. Turn indicator faces so both needles are aligned with zero.

7. Using your hydraulic jack raise or lower your suspension 1 inch

at a time. The difference registered in the dial indicator(s) is

the Bump Steer for that inch of travel.

General Rules of Bump Steer

1. RF is usually checked through 3" of compression & 1" of rebound.

2. LF is usually checked through 2" of compression & 2" of rebound.

3. When in doubt, set you Bump Steer as close to zero as possible.

A slight Bump out condition is better than a Bump in condition.

4. The rougher the track, the more critical the Bump Steer becomes.

PRIOR TO STARTING ANY BUMP STEER PROCEDURE

CONSULT YOUR CHASSIS MFG OR A CHASSIS SET - UP

PUBLICATION TO DETERMINE THE PROPER

BUMP STEER FOR YOUR RACE CAR.

Bump Steer Instructions