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Gearbox removal
#1

Does anyone know a link to a description of the process to remove the gearbox? I have synchro and pinion bearing issues so I figure gearbox overhaul time. First removal, then I need to find a good shop for the overhaul.
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#2

I know you can find it under 944 clutch replacement as the box has to be removed on the 944. I know the 944 has a 5 speed, but it should be about the same. I have done it on my 944, but have not on the 68.
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92 968 cab (cobalt blue/black top/grey int)

87 944S

19 Audi A6 3.0T

03 Toyota Tundra

 
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#3

Clarks garage has the instruction on removing the transaxle to do a 944 clutch, that should get you most of the way there.
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Dave



'93 968SC Nachtblau Metallic Coupe

'89 944 S2 Zermatt Silber Sold

'87 944 Silber Rose in colour only Sad Sold
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#4

I had a shop remove mine from the track car & send it to the RS Barn. Pete & Max did a great job. I have found a 968 specialist in the Tampa area, German Specialties, here on the forum. Leo said he love to work on these transmissions. I suggest using someone familier with this 6 speed.
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#5

Removing the transaxle from these cars is doable for the DIY'er, but definitely not a fun job. Just removing those wretched 12-point "cheese head" bolts that hold the axle shafts to the transaxle is enough to drive a sober person to the nearest liquor cabinet. The rubber CV boots sit very close to the bolt heads, making it difficult to get the wrench on the bolt heads in a perpendicular fashion. I can't remember the last time I stripped a bolt in my long lifetime of working on cars, but I ended up stripping three of these beauties. And that's just the beginning of the fun. A local shop erroneously told me I had an input shaft seal leak, so I was planning to remove my transaxle to replace it, but upon closer inspection, I found that the leak was actujally coming from the seals behind the half shafts, so I ended up leaving the transaxle in the car, I know Kwikt (sp?) has done this job. It just really requires a lot of patience. Good luck.
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#6

I just took mine out last weekend, the instructions in the 968 workshop manual is pretty good:
  • Disconnect the back up sensor

  • Disconnect the shift linkage and slide the linkage bar forward

  • Disconnect both axles shafts

  • Slide the driveshaft connector to into the trans bell housing (note take the bolts all the way out, there are keyed in)

  • Support the trans with a jack or trans jack

  • Support or block or support the torque tube

  • Remove the 4 bolts between trans and torque tube

  • Now the trans should only be hanging by the two trans mount bolts

  • Finally remove the two trans bolts

  • Slowly let it down and pulling back making sure to clear the shift linkage.

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#7

Question, can just the transmission rear sections be removed,( the rearward iron and aluminum cases) not the whole trans-axle? A track day missed shift as resulted in a second gear problem, extremely hard to get into second and almost impossible to get back out.



No metal in the drained oil, I'm thinking either bent linkage or a damaged/bent shifting fork!



Thoughts?
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#8

there isn't quite enough room. i was hoping for that myself when i wanted to change out 5th and 6th. no luck.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#9

Doing a site search and reading about some of the transmission second gear problems, I'm thinking more serious issues than just a bent linkage or fork. Looks like I'll be dropping the whole trans axle.



Any thought on a rebuild shop or possible purchasing a used unit?

Best dismantler.
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#10

Just responding to the question of dismantler. Someone posted this site on another thread, interesting web site: http://dcauto.com. They have a trans in stock, "Number 01E300042J $2,500.00 G44.00 Replacement transmission complete"



http://dcauto.gotdns...7988#01E300042J



Also, here is my ongoing list of dismantlers to search around, haven't communicated with them in a few years though. Can't say which are best or worst.
Roland
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Roland

'93 Coupe Tip Silver on Grey, '02 911 C4S, '89 Vanagon Syncro -- (RIP: 944, 911SC, 931, MGB, VW Bug, GTO, Sprite.)
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#11

Thanks Roland.
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#12

I had the same problem at VIR - lost second gear synchro. Getting into second gear became impossible, and first gear was really sticky. First became looser after the box cooled off, so I was able to limp home shifting from first to third.



Rebuilt by Precision Motorsports Racing in Califon NJ. They are a top-notch shop and do a lot of 944/968s.



Good luck getting parts - new OEM transmission parts are nearly unobtainium. <img src="/forum/images/smilies/968/sad.png" class="smilie" alt="" />
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#13

I've got a used box coming, no <acronym title='Limited Slip Differential'>LSD</acronym>, hopefully this will allow me some time to how/what/where to fix the old one. What type of <acronym title='Limited Slip Differential'>LSD</acronym> are you running, I'm thinking I will add one to this box before installing it.
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