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View Full Version : When CV shafts go bad

Luke@WSP
16-12-2009, 03:11 PM
My inner CV shaft didn't agree with me the other day and this was the result:

http://i212.photobucket.com/albums/cc155/sswsp/15122009158.jpg
http://i212.photobucket.com/albums/cc155/sswsp/15122009159.jpg
http://i212.photobucket.com/albums/cc155/sswsp/15122009160.jpg
http://i212.photobucket.com/albums/cc155/sswsp/15122009161.jpg
ShylanMotorsport
16-12-2009, 03:16 PM
Hahahahahahahaha :lmao:
Sorry mate......
NickS
16-12-2009, 03:47 PM
I've seen at least a handful just like that come off Lautray's car ... :lol: ... honestly officer, I was just cruising along, barely on the throttle !!!

:hide:
lautray
16-12-2009, 08:57 PM
I've seen at least a handful just like that come off Lautray's car ... :lol: ... honestly officer, I was just cruising along, barely on the throttle !!!

:hide:

Looks familiar indeed :lol:.

What was the occasion Luke?
VooDoo
16-12-2009, 09:15 PM
funny thing is ive never broken one. Had one get dry (grease was hard) and make a weird noise but never actually broken one
lautray
16-12-2009, 09:24 PM
Btw, I'm looking at buying a set of the GForce ones before I start supersprints in 2010... the level one shafts should be more than enough. Maybe worth a thought for you too Luke.
35R
16-12-2009, 10:22 PM
if you havent broken one you're just not trying hard enough, lol
Kyle
16-12-2009, 10:43 PM
Fark!!! Nice one luke! Running late for a wedding I guess? :D

I'm lucky that my car will never break shafts in it's current state.. The gearbox will absorb the load
Luke@WSP
17-12-2009, 08:40 AM
No event guys just a casual sunday drive :)

No wedding Kyle haha, I don't park this car.
WOMBIE
18-12-2009, 08:20 PM
A casual Sunday drive :rolleyes: :lol:
xr84dr
27-12-2009, 05:45 PM
know that feeling luke.

did mine at wsid 2 days after we fitted my new diff bush to the xr8. except mine stayed together somehow.
seldo
27-12-2009, 06:13 PM
A diff expert was telling me the other day that he sees a lot of these - mostly due to the car being too low and the CVs run out of travel (in length).
Luke@WSP
28-12-2009, 04:59 PM
A diff expert was telling me the other day that he sees a lot of these - mostly due to the car being too low and the CVs run out of travel (in length).


This CV destroyed the metal cage; mechanical over-stress failure.

That diff expert is right in a way, however lowered cars do not cause the CV joints to bottom out or run out of travel. If the bump-stop has been removed allowing further travel to that of the original manufactured design then yes, the cv joints can run out of travel.

What happens when the CV runs out of travel is not the CV joint letting go, but the shaft being forced into the diff end-caps, either punching them in or un-winding them resulting in a diff failure.

An incorrectly-adjusted IRS kit can also cause diff failure (CV running out of travel) :)
VooDoo
28-12-2009, 06:52 PM
Luke, in earlier models (VT-VX) the shafts were longer and do actually run out of length on lowered cars. VY and newer were slightly shorter and don't have the same issues. There are also differences between V6 and V8's where many wreckers sell them as the same thing and they break even easier. Same goes for K frames. I think there are 5-6 types that look identical yet
have differances in the metal between V6 and V8. Wreckers, insurance companies etc just get the cheapest and tell everyone it will work fine.
Luke@WSP
28-12-2009, 07:54 PM
Luke, in earlier models (VT-VX) the shafts were longer and do actually run out of length on lowered cars. VY and newer were slightly shorter and don't have the same issues. There are also differences between V6 and V8's where many wreckers sell them as the same thing and they break even easier. Same goes for K frames. I think there are 5-6 types that look identical yet
have differances in the metal between V6 and V8. Wreckers, insurance companies etc just get the cheapest and tell everyone it will work fine.
Yes most certainly, but cars (especially late model Commodores) are designed for a full bump-stop suspension travel, CV's included. The standard wheels and tyres, included drive-shafts / axles, brake lines, etc, can handle a full compression of the vehicle suspension (assuming of course bump stops are intact).
Animal
01-01-2010, 08:17 PM
Deffinatley seen that before Luke

Once at WSID
Once at Oran Park

Always carry a spare one when I go out to play

Now have a custom set made by the boys at Bosnjack Engineering with the Porsche CV's and stronger shafts.

Over a year now and I no longer worry about them breaking
Luke@WSP
01-01-2010, 08:24 PM
Might give them a call thanks buddy!