9
King Pin
Brass Set
Screw
E-Clip
1 - Build up the left and right steering blocks [68] as shown to the left. Start by threading the 1/4” button head
screw [26] through the steering arm of the block [68] and into the red low profile ball [11].
2 - Then, slide the steel stub axle [69] into the steering block as shown, and secure it in place using the red 4-40
locknut.
1 - Locate the e-clip [70] and snap it into the groove of the King Pin [71]. Slide the
Front End Spring [72] down over the threaded end of the King Pin until it rests
against the e-clip.
2 - Using either the included Allen key, or your own .050” hex wrench, slide the
King Pin/spring/e-clip assembly through the lower arm pivot ball [58], & then
thread it into the steering block [68]. Thread it in until the front spring just touches
the lower arm pivot ball. You do not want any preload on this spring, but you
don’t want play either. Only run the king pin in until the spring just touches the
ball.
3 - Once happy with the king pin/spring preload position, lock the king pin with
the 4-40 brass set screw [73] through the hole in the side of the steering block.
Red Low-
Profile Ball
11
71
73
70
Upper
Ball
74
Pro-Strut Front End
Bag F
4-40 x 1/4” BH
26
69
68
26
11
74
75
1 - Use the large 8-32 screws [76] to mount the front suspension assembly to the graphite
front end plate [77]. Make sure that you have the notched side of the front end plate to the
left side of the car, and the smooth side to the right. Push the bumps on the bottom of the
lower suspension arm into the holes on the front end plate. Tighten both screws firmly, but
be careful not to strip the threads in the arm.
2 - Insert the 4-40 x 7/16” flat head screws [78] through the chassis, and then through one
of the 2 included aluminum ride height spacers [79], and then through the Graphite Front
End Plate [77]. (The drawing to the left only shows the thicker of the 2 different spacers, but
there is also 8 pcs of a thinner spacer as well. Use the different spacers to adjust the front
ride height of the car.) The 4-40 x 7/16” screws will slide right through the 2 rear holes of the
front end plate. Secure them in place with 2 of the 4-40 red locknuts [9]. In the 2 forward
holes of the front end plate, the screws will need to be threaded into the graphite and
tightened before you will be able to put on the locknuts. This smaller, tighter, threaded hole
keeps the front end securely located in place, so it doesn’t shift in the event of a crash.
77
1 - Take the upper pivot ball [74] and push it though the steering block and thread into
the upper arm. Thread it in so there are no threads showing.
2 - Take the slotted capture insert [75] and thread it into the steering block. THIS IS A
BIT TRICKY .... as the insert must be fitted at a down angle as shown to the left. DO
NOT try to insert it horizontally into the steering block. It is actually threaded in at a down
angle toward the center of the car.
3 - Tighten this capture insert so that the steering movement is bound and slow. Yes, we
are actually slightly over tightening this piece FOR NOW. With the steering movement
bound from over tightening, move the steering to it’s limits, back and forth. What we are
doing is “breaking in” the upper ball/capture insert. After a minute or so of break in,
loosen the insert just enough so the steering is free. Not too much or you will induce
excessive free play.
Red Locknut
9
9
70
58
72
71
68
73
76
9
79
78
4-40 x 7/16” FH
78
Notch
Smooth
