Replacing Uni Joint on driveshaft

bigdog · Postby **bigdog** » Tue May 11, 2010 1:58 pm

Is it possible to replace the uni joint on an NA8 driveshaft? A friend has a shagged one and was quoted a fortune for a replacement driveshaft from Mazda. Has anyone modified a shaft to take a replaceable joint? Anyone have a second hand driveshaft?

93_Clubman · Postby **93_Clubman** » Tue May 11, 2010 2:06 pm

BD, couple of refs to na8 uni joint in the 1st & 6th posts of the following thread:
viewtopic.php?f=30&t=32265&hilit=na8+universal+joint
Doesn't sound as simple as just replacing the uni joint - sounds like a section of the driveshaft might be involved, hence the extra cost.

bigdog · Postby **bigdog** » Tue May 11, 2010 10:29 pm

Yes, the driveshaft and uni joint are a complete unit on our cars - I'm just wondering if anyone has found a way to repair the uni joint without replacing the whole thing ($900 odd from mazda :shock:

). I'm working on finding a second hand shaft, but surely there is a better way??

Wivvix · Postby **Wivvix** » Wed May 12, 2010 1:54 am

Get a new propshaft made up by an engineering firm with replaceable uni joints fitted. That's what I did.

Whatever you do, if you don't get a genuine Mazda one (new or used), make SURE they foam-fill it and get the balance PERFECT the first time, otherwise they'll probably be seeing you again.

Ask me how I know.

pcmx5 · Postby **pcmx5** » Wed May 12, 2010 10:57 pm

I had one made up with replaceable uni's(big ones apparently) and it cost $550 rather than the $940 Mazda wanted.

I had PDR is South Geelong do it but Gibson's in Newcastle come highly recommended.

Peter