'68L trans 901/74-trying to find info

[steve doll]

my '68 L had some interesting options including limited slip differential. found this week
that the matching trans is a 901/74.
i couldn't find it listed on the gears/ transmissions sheet. anyone have any knowledge on this? thanks, steve

[steve doll]

Can you post a picture of the transmission number and type.do you have a kardex or COA on the car

Raj

The car id is # 11805386 and the 5 speed trans # is 9284109 and I'm told is a 901/74. 4 I'm told is the nurburgring option.
the coa showed several interesting options including a limited slip differential.
the gears are B, HA,M,R and V [or Y] with a 904 main shaft.
any insight would be great.
steve

[gled49]

it should be a 901/54. The 928 prefix indicates a special ratio trans. The 4 coincides with the 4 in 54. The remainder are sequential. Gled

[steve doll]

yes maybe it should be a 901/54 but it's stamped a 901/74 with an aluminum matching #'s trans.
maybe a special order that was made for someone back in the day? Seems unusual to have a limited slip with track gearing and options like a sunroof, ski rack and Stern Disks Wiper [rear window wiper?].
Steve

[Rusty]

Steve a friend gave me this website: gboxweb.com, /74 is listed as airport gears with LSd available.

[Rusty]

I stand corrected.

Rusty

[steve doll]

hopefully this works and will show a photo of the 901/74 # on my trans. Steve

[steve doll]

pretty interesting info. thanks
pic above- sorry it's up side down.
Steve

[Jon B]

Transmission code 901/74 is not listed in Porsche manuals for model year 1968, but codes 901/75 through 901/79 are listed as 1969 transmission options. It's possible /74 was a late unlisted inclusion for 1968, without reference in standard manuals.

Jon B.
Vista, CA

[Jon B]

the serial number listed is definately in the 901/54 range...

Yes, but... In 1969, the Nuerburgring box was 901/79, with numbers beginning at 7394001. Early in '69 production housings changed from aluminum to magnesium, and the mag Nuerburgring box became 901/84. But serial numbers remained in 7394000 range, beginning at 7394101. The same might have occurred in '68, with 901/74 beginning at 9284101.