GFB STi 6 speed short shift kit upgrade (part 4202) User Manual

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Remove the linkage bolt that joins the gearstick to the shift
linkage, and let the gearstick rest towards the back of the car
out of the way for the next step.

Fit the two parts of the linkage knuckle around the factory
shift linkage with the long side facing up (fig. 4). The top of
the long side should lean towards the back of the car. If it
leans toward the dashboard, turn it around the other way.

Place the two M4 screws into the holes and screw them in
until they are finger tight, making sure there is an equal
gap between both sides of the two parts.

Now loosen the left screw just enough to allow the knuckle
to be rotated horizontal (so that the two ends of the knuckle
are parallel to the sides of the shift linkage), but DO NOT
tighten it back up just yet.

Fix the two side plates to the linkage by first inserting an M5
screw through the matching 5mm hole and thread it into the
linkage knuckle (fig. 5), but do not tighten it yet.

Insert an M8 screw through the plate and then through the
hole in the shift linkage fork. Thread an M8 nut partially on,
but DO NOT tighten yet. Repeat step 7 & 8 on both sides
(fig. 5). Now tighten all screws and nuts. As long as the
lower M4 screw on the linkage knuckle was set to the right
distance as per step 10, you should only have to tighten the
top screw to clamp it up tight.

At this point you will need to decide how short you want the shift
throw to be. This is determined by the height of the clamp on the
gearstick relative to the pivot ball – the higher the clamp, the
shorter the throw (Note: the shorter you make the throw, the more
force will be required to shift, this is normal). The 3 holes in the
blue plates simply ensure that the gearbox linkage remains at the
correct angle (so it doesn’t foul on the transmission tunnel)
regardless of the clamp position. We suggest beginning with the
middle hole.

Make sure the factory steel sleeve is still in the white bushings of
the gearstick clamp, then line up the sleeve with the middle hole.
Hold one of the M8 washers between the sleeve and the side plate, then slide the factory bolt through the side
plate, the washer, and into the sleeve. Note that you may have to adjust the height of the clamp on the gearstick
to get the bolt through the holes. Position the second washer on the other side (fig 6), and push the bolt fully
through. Partially thread the nut onto the end of the bolt, tighten the screw in the gearstick clamp and test the
shift feel. If the throw is too short or long, make an adjustment to the height of the clamp, and if necessary, select
a different hole on the side plates so that the gearbox linkage does not rub or foul in any gear.

Note that as you slide the clamp up and down, the neutral position of the gearstick will move slightly. By using
the combination of the clamp height and hole position, you can tailor the shift feel to your liking. Once you are
satisfied tighten the clamp screw and linkage bolt, then perform a final check to ensure that you can select all
gears (including reverse) smoothly, without binding. Replace the plastic shrouds in the reverse order of removal.

GFB Short Shift Kits carry a lifetime warranty which covers faulty components or manufacturing. Warranty is limited only to the
repair or replacement of GFB products provided they are used as intended and in accordance with all appropriate warnings and
limitations. No other warranty is expressed or implied.