18
FRONT SUSPENSION
kIck Up
ROll cENTER
DOwNSTOp
wHEElBASE
TRAck wIDTH
901408
SB M4x8
909395
SS 3.5x45
909372
SS 3.5x22
All possible mounting alternatives
of eccentric bushings
Composite eccentric bushings
Initial position
1
1
0.5
0.5
0
Composite eccentric bushings
Initial position
1
1
0.5
0.5
0
FRONT ARM
L=R
(HUDY #107634)
ARM REAMER
If the suspension arms do not move freely, use
a HUDY Arm Reamer resize the holes.
L=R
2.4mm
DOWNSTOP SETTING
The tables below describe the amounts of kick-up, front track-width change depending on the combinations
of eccentric bushings used with 0 and 1mm, 1° off set. The 0.5mm, 0.5° represent the half change.
Example:
kIck-Up
TRAck wIDTH
ROll-cENTER
FF
FF
FF
FR
FR
FR
(°)
(mm)
(mm)
=10
°
=9
°
=11
°
=9
°
=8
°
=10
°
=11
°
=10
°
=12
°
=308
=306
=310
=1
=0
=-1
kIck-Up
c-Hub caster
8°
9°
10°
11°
12°
10°
18°
19°
20°
21°
22°
12°
20°
21°
22°
23°
24°
14°
22°
23°
24°
25°
26°
Total caster is the angle that the C-hub is to the flat chassis
bottom. Caster is affected not only by front kick-up but also
by the C-hub caster. The combination of both represents
the total caster angle. The XRAY XB9 includes a 10° caster
block as stock, but 12° and 14° C-hub caster blocks can be
purchased as options.
TOTAl cASTER = c-HUB kIck Up
0(FF) - 0(FR) = 10°
0.5(FF) - 0(FR) = 10.5°
1(FF) - 0(FR) = 11°
= 10
°
= 10.5
°
= 11
°
The new XRAY alu front lower suspension holders provide even greater range of adjustment for the front suspension. Using different combinations of eccentric bushings, fine adjustment of front kick-up, roll-center,
and front track-width can be obtained. For more information about the influence of kick-up, front track-width, and roll centers on car handling, please refer to HUDY Off-Road Set-up Book (#209099).
Eccentric bushings have two different offsets from the center.
Middle position = 0.5 mm or 0.5° from center
Outer position = 1mm or 1° from center
➊
➊
➋
➌
➌
➍
➍
➎
2mm
4x8
FR
FF
2mm
