wjk_glynn

I didn't know that the 968 tranny is designated a G44 in the manual until you pointed it out earlier.

But just because the 968 tranny is listed as a G44, that does not necessarily mean that the guts are the same as used in the 944/951 version of the tranny.

Porsche are often loose with the part number scheme.

For example, the 968 headlight assembly (which I guarantee never appeared on any 944/951 before the 968 appeared) is a 944.x.x.x part number.

As regards where I'd first heard that a 968 tranny has G50 guts, I can't remember. I seem to remember first hearing about it in a review from years back (I think it was a 993 review, and they mentioned the commonality of some tranny bits). Then over the years, anytime the subject has come up, the consensus (from authorative sources such as GT, Quaife, etc) is that the 968 tranny guts are G50 (irrespective of the fact that its tranny is listed as being a G44).

Another thing to note about G50 transmissions is that (I believe) this is the first Porsche tranny to not use Porsche synchros. That partially explains why the 968 tranny is a sweeter shifting box than the 944/951 tranny.

And I believe the first street Porsche to use a G50 was the '87 Carrera (that was a 5-speed version of course).

Karl.

wjk_glynn

9M also says the 968 tranny uses G50 guts: http://www.9mracing.co.uk/html/gener...TorsenLSD.html

Karl.

flash968

yeah - since this car was originaly supposed to be a 944S3, they carried the nubmbering forward on a lot of parts - where i was seeing a departure was the "G", which is a Gettrag prefix, and not a porsche number - this is afterall, an audi box (as indicated by the logo on the side)

i'll do a cross reference part by part on the two boxes to see what crosses over - it would be nice if we could use the cool G50 gears and such - at a minimum, i'd like to push first and second up closer to third - i know powerhouse has a gearset, but i am thinking maybe we can do better on pricing than that by sourcing standard G50 parts

wjk_glynn

The October 1994 issue of Excellence has an article by Jim Pasha on the 924/944/968 drivetrain components.

Included is a table listing all the transaxles types used in the 924/944/968.

The 944 used type 016J, 016K, 016R, 016S, 083D and 083F transaxles.

The type G44 was only used in the 968. The article does not say that the G44 is a G50 type, but it does mention that it is a Getrag unit.

Karl.

flash968

i'll be matching part numbers from the G44 list for our box, and the G50 list shortly to see what interchanges - it would be nice if we could source parts for less than the 968 pricing - if it's G50 stuff, we probably have more options for source, type, and pricing

d993

Here's my opinion; Swap out the whole tranny and axles if you have one from a 951S. It's a lot cheaper and more reliable.
My '94 968's tranny is still fine, but I've heard too many stories about early pinion bearing failure on the 6 spd 968 trannies. Some say only the non-LSD trannies have the problem, some say all of them can go bad.
I had a '90 944S2 with a 951S tranny in it (3.375 vs 3.875 final drive) with intake, exhaust and chip, and it was considerably faster than my 968 or my friend's '89 911 Carrera (especially in 4th gear from 100 to 130).
When you have enough torque, longer gears may be a better option at certain speeds.