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Porsches
are equipped with one of two basic shift housing
designs:
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Exploded
view,
915 Shift Housing ('73-'76)
Various
915 shift levers
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Type
I
(Lever
A)
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'73
- '84
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Note:
Beginning in '77, the shift housing contains a
threaded pin to adjust the left/right play. This
feature is less important when using the Gate Shift
kit as left/right play is controlled by
springs.
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Type
II
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'85
- '86
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Reduces
the lever throw by about 10% over the Type I
housing. Referred to as the factory semi-short
shifter.
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Optional Short
Shift upgrades:
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Factory
Short Shifter (FSS)
(Lever
B)
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All
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Optional
in '85-'86. Factory kit (911.924.931.00) replaces
all moveable parts in Type I and II housings. It
provides an overall 20-25% reduction in lever
throw.
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Target
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All
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Replaces
just the lower pivot and ball section of factory
shifter with a longer unit (see C in picture at
right)
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Weltmeister
(WM) (aftermarket)
(Lever
C)
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All
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Replaces
shift lever. Bottom of shift lever from pivot point
is longer. Spacer added under the shift housing.
About 39% reduction.
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Note:
The Gate Shift kit is compatible with all currently
available short shift kits
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How to Identify Factory vs Factory Short Shift
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Quick
Method:
With
a factory short shifter (FSS), the distance from
the center of the shift knob to the lower edge of
the ash tray is approximately 4 1/4" in first gear
and 9 1/2" in second gear.
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Distance
to pivot pin identifies shift mechanism
type
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More
Accurate Method:
Remove
the shift boot, then measure the distance from the
bottom of the housing to the center line of the
shift lever pivot pin (see photo at right). Here
are the approximate dimensions and visual
cues:
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Housing
Type
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Distance
from housing bottom to pivot pin center
line
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Type
I:
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1.375"
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(36mm)
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Type
II:
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1.6"
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(40mm),
+4mm over Type I
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FSS
w/Type I or II housing:
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1.875"
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(48mm),
+12mm over Type I
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WM
w/Type I or II housing:
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Visual:
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Spacer
added under the housing
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