924Board.org

rgrove · Joined: 01 Jul 2009 Posts: 2 Location: Frankfort, ME

is the drive shaft on an 81 931 compatible with a 80 924? i have a 80 924 that has drive shaft bearing issues (i think). if it isn't the bearings, can i put a complete drive shaft from a '81 931 to a '80 924?

thanks

Smoothie · Posted: Sat Aug 01, 2009 11:53 pm Post subject:

No, they're different sizes (20mm vs 25mm).
Clutch, driveshaft, and gearbox are different..
_________________
"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

+1^

To expand a little, 931 and NA torque tubes are not interchangeable. Snailshell and Audi-based torque tubes are not interchangeable.
944 and 924NA torque tubes are not interchangeable.

Audi-based torque tubes from any 924 NA are interchangeable.
Audi-based torque tubes from any 931 / 924S / 944 / 951 are interchangeable.

HTH.
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erstwhile owner of just about every 924 variant ever made

rgrove · Joined: 01 Jul 2009 Posts: 2 Location: Frankfort, ME

If the whole drive shaft needs a replace, what should I do? What would you guys do? Thanks for the quick replies.

Scorpio · Posted: Sun Aug 02, 2009 2:54 am Post subject:

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

I can rebuild them, if you're willing to pay for it.

The bearings are about $90 and it is about 4 hours of work to remove and replace the innards of the tube (the first one always takes the longest). Plus then there is the shipping to/from. I would look at using Greyhound since they do a fairly good job with odd sizes.

Here's a description of all that is involved:

http://www.clarks-garage.com/shop-manual/trans-05.htm

Keep in mind that this is for a 944 so the bearings are different and the torque tube is slightly different since the transmission is also different from yours.

Also, if you haven't done so, you might want to replace the clutch since it would suck to have to do it after the fact.

Something to think about, if yours are worn out a car of similar vintage may have the same problem, though rebuilding a spare would cut down on the time the car is down.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)