In
October of 2010, we worked with 4M Industries to develop a
limited production run of short shift levers for the
snailshell-equipped 924s. These shift levers are CNC-machined from
billet aluminum, and based on the original design of long-time
924board.org member "Lizard"...but we took the design improvement one
step further.
We
felt
that the height of the original design was nice for road
use, but perhaps a bit short for track use, where you may wish
for less
distance and motion between the steering wheel and the shift knob.
Consequently, we intentionally had the machinist leave the length of
the shift lever a bit longer.
The pivot points
determine the shorter
throws (approximately 50%). The height of the knob (and therefore
distance from steering wheel) may be customized by the individual owner
by simply trimming the end of the lever.
This is a
direct bolt-in replacement for the factory G31 / 016Y/Z shift lever,
and uses all of the factory bushings and mounting arrangement. Note,
however, that this lever is designed to accommodate aftermarket shift
knobs, not the factory knob. We highly recommend the Momo Super
Anatomico.
Ideola's
Snailshell Short Shifter Includes
four new plastic shift lever bushing.
Comparison
of stock lever to short shifter
Snailshell
short shifter with Momo Super Anatomico shift knob (not included!)
California
Motorsports has specialized in transaxle Porsche gearboxes for more
than 30 years. As an exclusive importer of Albins Off Road Gear racing
gears, CMS was able to commission the development of the infamous 1st,
2nd, and 3rd gear dogteeth that notoriously go bad on the so-called
"snailshell" gearboxes. These gears are NLA from Porsche and not
available anywhere else.
The 1979 924 normally
aspirated cars had a version of this gearbox, also known as the G16,
and the 1979-1980 931 had a version known as the G31. The G16
and G31 have different 1st gear dogteeth, both of which are available
from Ideola's Garage courtesy of CMS. The same dogteeth gear is used
for both 2nd and 3rd gear across both gearboxes. Each dogteeth
gear is $225, a 10%
discount
off of the direct pricing
available from CMS!
Exclusive!Brass
Bushings for G16/G31 Universal Coupler
The
OEM plastic bushings for the snailshell shift rod universal coupler
have slop "built in". While the slop might make the shifter feel a bit
smoother at first, the plastic bushings quickly degrade, increasing in
sloppiness, and contributing to the notorious synchro and dog ring
wear. These solid brass bushings eliminate ALL slop, and make the
shifting action must firmer and more precise, almost like a gated
feeling. At $14 a pair, these are cheaper than you can buy the plastic
ones from the big catalog resellers!
G31/G16
Shift Linkage Rebuild Kit Includes
replacement OEM bushings for the rear coupler shown below, along
with the 4 plastic shift lever bushings, and a new "angle joint", which
is the ball socket at the end of the shift lever guide tube. Brass
Bushings for G31/G16 Coupler Temporarily NLA
Brass
Bushings for G16/G31 Universal Coupler
NOTE:
The kits listed
on this page are
NOT available from Porsche as "kits". This is a service that we provide
to make ordering easier. Many of the items in these kits must be
sourced individually from multiple locations. Please
plan for a minimum of 2-3 weeks before shipment on these kits!!!
Exclusive!
Ideola's Rebuild Kits Another
problem plaguing the snailshell owner has been the lack of
rebuilt kits. The seal kits and synchros have been NLA from Porsche for
some time. But with the help of other transaxle enthusiasts and some
select suppliers, we've been able to identify direct fit replacement
parts from other transaxles and can now offer complete rebuild kits,
consisting of the following components:
first
gear synchro ring
second
gear synchro ring
anchor
blocks for 1st & 2nd gear synchros
input
shaft radial seal
(2)
stub axle radial seals
shift
selector radial seal
differential
cover o-ring
(2)
transaxle fill plugs
(2)
rear shifter coupling bushes (plastic)
ball
cup shifter joint
NOTE: the
front
housing to mid housing paper gasket that was previously included with
this kit is now NLA from Porsche.
G31/G16
Ultimate Rebuild Kit 1+2+3 Includes
everything in the list at left, plus an extra synchro and anchor block
for 3rd gear G31/G16
Ultimate Rebuild Kit 1+2 Includes
everything in the list at left G31/G16
Deluxe Rebuild Kit Seal
kit plus shifter kit (see above). NO synchro
rings
included. G31/G16
Seal Kit Only Seal
kit
only (no synchro rings, filler plugs, or shift linkage bushings) G31/G16
1st Gear SynchroG31/G16
2nd Gear Synchro