996 gearbox C2 Cab 1998 6 speed

[Darren996]

:jump:

Hi all i have had problems with my gearbox selecting second so decided to remove and examine, found second gear syncro and hub damaged !! can someone please advise where i can obtain parts or exchange please as the sun will be shining soon and ill be stuck indoors !!!

Thanks Darren..

[SPR]

I hear that it is extremely difficult to find parts as porsche doesn't release them directly. Unless you buy a decent tranny and do the swap you are relegated to buying a remanny from Porsche.

[Darren996]

yeh i understand this after ringing round. is a boxter year 2001 likely to have the same gearbox (or second gear syncro)

Thanks again Darren

Edited February 15, 2005 by Darren996

[CoreyNJ]

yeh i understand this after ringing round.  is a boxter year 2001 likely to have the same gearbox (or second gear syncro)

Thanks again Darren

<{POST_SNAPBACK}>

I believe boxster(base model) is a VW transmission shared with the Passat, the Boxster S is the same transmission as the 996(with a few minor changes).

If you do find replacement parts(you might want to check some racing sites), please let us all know because at somepoint we will all need to do some tranny work if we keep our cars long enough.

goodluck,

Corey

Edited February 16, 2005 by CoreyNJ

[Loren]

The pinion gear on the Boxster is on the other side (reversed) since the Boxster is a mid-engine car. You would want 1 speed forward and 6 in reverse. :lol:

[J9000]

Get a new gearbox. It costed me $6800 in total to replace with one year waranty from Porsche. No other way as far as I know.

There was one new 996 gear box selling on eBay for $2K but I believe someone grabbed it.

[Richard Hamilton]

Is the GT3 gearbox the same basic unit as the 996? If you look at the PET you will see that all the gearbox parts are listed separately, and most have 996 part numbers. It might be worth looking in to.

[Loren]

The GT3 gearbox is different (type G96.90, G96.93, G96.96) from the standard Carrera's (types G96.00, G96.01, G96.30, and G96.31). Also, I think you can replace gear sets in a GT3 gearbox but they don't list all parts in the gearbox.

[Richard Hamilton]

The most likely difference between the 996 and GT3 gearboxes would be the ratios used. It might be that the synchro rings and hubs could be the same.

I know that Porsche have a similar policy on the tiptronic boxes - replace the whole box - but you can get the parts from ZF suppliers.

Perhaps when the box ends its production run (I assume that the 997 uses the same box) the parts will miraculously become available.

[clord]

FYI... As Loren says above, the gearbox in the 2004 GT3 is a totally different box. It is evolved from the box in the 911 GT2 which in turn evolved from the 993 GT3 TT race box. The current GT3 box is also used in the 911 GT3 Cup and GT3 RS/RSR race cars. It has a dedicated oil pump and external oil/water intercooler, steel baulk rings on gears 3-5, and interchangeable gear ratios(layshaft assembled from individual ratios that are positioned, not pressed into place), and of course a 40%/60% asymmetrical clutch type limited slip differential.