Cv joint failures

[rioredstang]

I lost a cv joint in spring and replaced with new aftermarket shafts. they didn't last but about 20 laps. Replaced again but cleaned and repacked with redline cv grease. I haven't pulled the shafts yet but felt like one is starting to vibrate. Any ideas on where to get better shafts?

[Matt93SE]

You need an IT-compliant one, correct?

Might contact Mike Ogren out of Florida (Look on the IT or Prod racing forums) he typically does VW stuff, but might know where to get nissan-compatible parts or do the work for you..

[rioredstang]

Yes, I think some good stock axles would work if I could find them. I don't think the aftermarket axles are heat treated very well.

[Matt93SE]

Yup, that's my understanding of the problem.. They machine everything to fit a larger ball and remove the slop, but then they don't heat treat everything afterwards. maybe the solution is to just take some parts store axles and then have them re-treated locally. (watch out for REM finishing cause that be illegal... but I have heard of local SM folks doing it for that extra 0.02sec.)

[rioredstang]

Thanks, I will look into that.