SSflyer Posted August 29, 2007 Share Posted August 29, 2007 There was a post a few months ago about difficulty in finding a source for rebuilt CV's. Well, it appears that Rock Auto has a rebuild service and can turn the parts around in a week plus shipping time. The costs are $75 for the right side, and $70 for the left, which may or may not be a fair price, but I'm going to try them out. The only 'catch' is that they rebuild the axles you send them, no exchange. I'll post up when they come back and let y'all know if they are a viable source... Quote Link to comment Share on other sites More sharing options...
SSflyer Posted September 28, 2007 Author Share Posted September 28, 2007 OK, here's the update.... One CV axle was actually in stock at Rock Auto and shipped immediately. The other side had to go to their rebuild center, and it came back yesterday. Both look like new units, sandblasted, painted, new boots and end caps. Rock Auto seems to have their act together on the whole process, and they've actually refunded the core charge without me having to call and yell at somebody. I also had my diff reworked at AZ Driveline in Phoenix and they found a toasted pinion bearing. The input flange was extremely difficult to turn before, so hopefully I'll even pick up an hp or two. So tomorrow will see all the 'new' parts reinstalled and the car back on the road. Quote Link to comment Share on other sites More sharing options...
1 tuff z Posted September 28, 2007 Share Posted September 28, 2007 if u can post before & after pics that would b great! Quote Link to comment Share on other sites More sharing options...
SSflyer Posted September 30, 2007 Author Share Posted September 30, 2007 Another update.... Went to install the CVs yesterday and the one that was shipped from their stock is way too long to fit. Evidently they had a mislabeled part. Since they already have my core we'll see now how good they are at fixing a real problem! I'll get a picture or two shortly... Quote Link to comment Share on other sites More sharing options...
blueovalz Posted October 1, 2007 Share Posted October 1, 2007 Yeah, I was waiting for that. It seems no matter how promising it appears to be, we're always getting the passenger side shaft instead of the driver's side, but it looks like you'll actually get what you need (hopefully). Quote Link to comment Share on other sites More sharing options...
jeromio Posted October 2, 2007 Share Posted October 2, 2007 Another update....Went to install the CVs yesterday and the one that was shipped from their stock is way too long to fit. Evidently they had a mislabeled part. Since they already have my core we'll see now how good they are at fixing a real problem! I'll get a picture or two shortly... Ha! It's probably the same one they sent me.... Quote Link to comment Share on other sites More sharing options...
SSflyer Posted October 3, 2007 Author Share Posted October 3, 2007 Got an email back from them today and they acknowledged they sent the wrong part. They forwarded a prepaid return authorization so now it's back to waiting for the 'correct' axle to arrive. Quote Link to comment Share on other sites More sharing options...
gnosez Posted October 3, 2007 Share Posted October 3, 2007 This sounds very similar to the issues with the 300ZXT CVs I and others have been having. I suspect that the remand folks don't do much quality control and end up mixing up the left and right side shafts. I was also thinking that it also may not be as critical to have the wrong size/side shaft in your Z31, but have to rethink that theory for 280ZXs. All I can say, after toasting a perfectly good 3:90 ring set with new bearings, in less than 150 miles is, DO NOT use the wrong shafts! Quote Link to comment Share on other sites More sharing options...
SSflyer Posted October 7, 2007 Author Share Posted October 7, 2007 Ok, the replacement axle arrived, and it's wrong too. Why, oh why did I send my cores back???!!! Quote Link to comment Share on other sites More sharing options...
blueovalz Posted October 7, 2007 Share Posted October 7, 2007 because you thought they would rebuild them rather that what has happened to the rest of us, and end up getting two driver's side axles. We're still rooting for you though! Quote Link to comment Share on other sites More sharing options...
jeromio Posted October 8, 2007 Share Posted October 8, 2007 My plan is to engrave my name on the shafts, along with corresponding "RIGHT" and "LEFT" labels and then take them to a local shop to be rebuilt... Quote Link to comment Share on other sites More sharing options...
Tony D Posted October 9, 2007 Share Posted October 9, 2007 Beware of `Rebuilt`tripods. If there is any wear in the races, the only viable solution for rebuild is to grind them oversize and install a bigger ball bearing. Now, if the ball bearing was only 0.010´´ thicker, that may not be a problem. But from the pair I saw, they were the next standard metric oversize ball bearing. Which meant the oversized ground races they ride in had all the surface hardening ground out of them, and the balls were riding on the softer inner metal of the tripod carrier. They lasted half a pass, and hte ball bearings ate right through the carrier. Put in a set of junkyard pieces and they´re still running. Mosat driveline shops can dissassemble them, install new boots and pack them with grease for $50-75 a side. It´s NOT ´rebuild´but simply a repacking service. And really, this is all they usually need. If they are worn on the races, crapcan em...especially if you plan on putting power down with them...the reground races will not hold up! Engraving axles is not a good idea, the stress risers associated with the surface imprefections can cause problems with higher horsepower applications. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted October 9, 2007 Share Posted October 9, 2007 A note here on the wear. When I was using this assembly, I found these CV jonts installed on my S30 were compressed more than in the normal OEM application. This then placed these bearings in a location closer to the base of the tulip, where little to no previous wear had taken place, and as a result tightened them up a tad (which is a good thing). Quote Link to comment Share on other sites More sharing options...
SSflyer Posted October 11, 2007 Author Share Posted October 11, 2007 OK, my last post on this lame topic..... The final result is that they can't supply a right side axle of the correct length. (An interesting side note is that when I asked what length they showed for a LEFT axle, they said it should be 21-3/8", which by an amazing coincidence is the exact measurement required for the RIGHT side!) Cardone, who is the rebuilder, refuses to acknowlege that their data is in error. So now they want to credit me back for the rebuild cost and just say good-bye, leaving me with NO axle! My last communication with Rock Auto was they I expect them to compensate me for the cost of a replacement for the core I sent them. I did find a source on EBAY and have ordered a new pair of used axles which I will 'refurbish' myself. I do have to say that the sales guy at Rock Auto has been really cool and hasn't blown me off, yet. Note to self: Next time, DO YOURSELF A FAVOR AND SEARCH THE HYBRID Z BOARD FIRST!!!!! Quote Link to comment Share on other sites More sharing options...
johnc Posted October 11, 2007 Share Posted October 11, 2007 I've spoken with Cardone, Undercar, and EMPI and none of those companies track left/rights when rebuilding the 280ZXT or the 300ZX CVs. Quote Link to comment Share on other sites More sharing options...
rags Posted October 11, 2007 Share Posted October 11, 2007 Here is what I did. I got a set of M30 CV axles from a JY for my core. Had them rebuilt. They came back with new tight tripods on M30 axles. I then took the new tripods off the M30 axles and swapped them onto the 280zxt shafts. Now I have the correct length shafts with new tripods and the boots on the inners are replaceable for an added bonus! Also, the inner housings allow for the tripod to slide into it an extra 1/4" due to the stop button being recessed that much more. Joe Quote Link to comment Share on other sites More sharing options...
blueovalz Posted October 11, 2007 Share Posted October 11, 2007 Nice solution. Expanded upon with some photos would make this a nice sticky. Quote Link to comment Share on other sites More sharing options...
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