Mittler Bros Machine & Tool 1200 - Manual (Page 2)

Division of Mittler Corp.
P.O. Box 110 Foristell, Missouri 63348
10 Cooperative Way Wright City, MO 63390
1-800-467-2464
(636) 745-7757 Fax: (636) 745-2874
03-07-08 BRP
Right Front Bump Steer Procedure
Install Bump Plate on right front hub assembly and tighten 5 lug nuts.
Dial Indicator on pivot arm closest to vehicle front.
Use hydraulic jack to raise or lower your suspension 1” at a time.
Record readings at 1”, 2”, 3” Up (Compression) , & 1” down (Rebound).
NOTE: Counterclockwise dial indicator movement = Bump Out
Clockwise dial indicator movement = Bump In
Change Bump Steer by raising or lowering outer tie rod connection or inner tie rod position on
intermediate arm.
Note: Lower Right Side Outer Tie Rod = Bump In
Left Front Bump Steer Procedure
Install Bump Plate on left front hub assembly and tighten 5 lug nuts.
Dial Indicator on pivot arm closest to vehicle front.
Use hydraulic jack to raise or lower your suspension 1” at a time.
Record readings at 1” & 2” Down (Rebound) & 1” & 2” Up (Compression).
NOTE: Counterclockwise dial indicator movement = Bump In
Clockwise dial indicator movement = Bump Out
Change Bump Steer by raising or lowering outer tie rod connection or inner tie rod position on
intermediate arm.
Note: Lower Left Side Outer Tie Rod = Bump Out
General Rules of Bump Steer
RF is usually checked though 3” of Compression & 1” of Rebound
LF is usually checked through 2” of Compression & 2” of Rebound.
Set Bump Steer as close to zero as possible, if in doubt.
A slight Bump Out is better than a Bump In condition
The rougher the track the more critical the Bump Steer becomes.