SteveG Posted June 21, 2006 Share Posted June 21, 2006 Anyone here have experience with the KAM 24/23 spline female/female cv joint with fusable stubshafts?I modified Toyota cv's to be like that for my front portal boxes, and they have held up fine, but would like an off the shelf option if they were stronger. Dave, Flyer, and Lara on here do. They both still kept breaking CV's but just the stub so easier and quicker to change. IIRC I think they both went out to the max setting that Kam do and have been fine since - but I'm sure they'll post and tell you exactlly. Steve Quote Link to comment Share on other sites More sharing options...
RPR Posted June 21, 2006 Share Posted June 21, 2006 I think you ought to check out this CV tech & porn thread on PBB. It's pretty much a definitive review of the various uprated CV options and the AEU2522, while better than what you may have, does not come in for much support - infact there appears to be a picture of a blown AEU2522 CV and MD drive flange on page 2 of the thread... CV Tech on PBB Quote Link to comment Share on other sites More sharing options...
RPR Posted June 21, 2006 Share Posted June 21, 2006 Bill,Replacement Cvs for 303's? no probs Please enlighten me.... Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 21, 2006 Share Posted June 21, 2006 Bill,Replacement Cvs for 303's? no probs Similar but not quite Dolly. I have home made portals on modded Rover axles. When making them up I required cv's with a very short 24 spline stub shaft so chopped the stub off Toyota ones and welded on the female spline from a Salsbury diff side gear to make what essentially KAM now produce commercially. My friends however will be happy to know that replacement cv's are available for their Volvo axles. How about a solution to worn out tie rod ends? particularly the double one for left side on RHD vehicles. Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 21, 2006 Share Posted June 21, 2006 Hi Bill, just realised exactly which Bill you were - welcome to the forum. Thanks Ben. I just discovered this forum by chance when following the ''twist off gone wrong'' link from another site. Quote Link to comment Share on other sites More sharing options...
white90 Posted June 22, 2006 Share Posted June 22, 2006 Bill van snorkle-AKA Daddylonglegs? welcome to the forum Quote Link to comment Share on other sites More sharing options...
Michele Posted June 22, 2006 Share Posted June 22, 2006 aka "agrover" as well? Hey,you have a lot of secret identities! Welcome. BTW I have a pic of your green portalled hybrid as wallpaper... B) Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 Well thankyou for the welcome gentlemen. Quite a nice, friendly and informative forum you have going here. I have spent a couple of evenings reading many of the older threads. Yes I like to change aliases. don't know why, just do. Michele, I don't have any photos of my truck although many have been taken over the years. There is a photo of one of its back wheels on the ''portal'' thread on about page 70 of this forum though. Back on topic. KAMs website doesn't make any claims about their CV's being stronger. Just mention that their fusable stub shafts prevent cv breakage. Would be interested to hear from anyone who has used them in anger. regards. Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 22, 2006 Share Posted June 22, 2006 Well thankyou for the welcome gentlemen. Quite a nice, friendly and informative forum you have going here. I have spent a couple of evenings reading many of the older threads. Yes I like to change aliases. don't know why, just do. Michele, I don't have any photos of my truck although many have been taken over the years. There is a photo of one of its back wheels on the ''portal'' thread on about page 70 of this forum though.Back on topic. KAMs website doesn't make any claims about their CV's being stronger. Just mention that their fusable stub shafts prevent cv breakage. Would be interested to hear from anyone who has used them in anger. regards. Have a read here : http://www.devon4x4.com/forum/viewtopic.php?t=1586 Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 Have a read here :http://www.devon4x4.com/forum/viewtopic.php?t=1586 Thanks Dave, I'll give KAM a miss then. You don't make 23/24 spline female/ female cv's by any chance? Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 22, 2006 Share Posted June 22, 2006 Thanks Dave, I'll give KAM a miss then. You don't make 23/24 spline female/ female cv's by any chance? sorry no, just these : http://www.ashcroft-transmissions.co.uk/category_17.html Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 sorry no, just these :http://www.ashcroft-transmissions.co.uk/category_17.html Unfortunately the stubshaft is about 3 inches too long for my application. Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 22, 2006 Share Posted June 22, 2006 Unfortunately the stubshaft is about 3 inches too long for my application. I have another customer that also needs some shorter ones for a bespoke application that is thinking of buying some, cutting to length and re-splining them, Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 I have another customer that also needs some shorter ones for a bespoke application that is thinking of buying some, cutting to length and re-splining them, That would be fine if they could be annealed, resplined and then rehardened without shrinkage to the bell or affecting strength. Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 22, 2006 Share Posted June 22, 2006 That would be fine if they could be annealed, resplined and then rehardened without shrinkage to the bell or affecting strength. or maybe grind the spline to avoid the heat treatment, Quote Link to comment Share on other sites More sharing options...
isuzurover Posted June 22, 2006 Share Posted June 22, 2006 That would be fine if they could be annealed, resplined and then rehardened without shrinkage to the bell or affecting strength. Bill, they are through-hardened AFAIK (but probably nowhere near as hard as OEM if my longfields are anything to go by) so you just need to find someone who can cut splines as they are (axle companies in the US seem to always buy hardened blanks and then cut the splines in). I did some machining on my longfields, wasn't too hard. Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 or maybe grind the spline to avoid the heat treatment, Yes, that is a possibility.I have had splines ground in the past on case hardened components and as long as they don't receive surface scratches or dint during handling they have been ok.and of course annealing a cv wouldn't be necessary when doing external splines. I was thinking back to when I had an early RR cv annealed, broached and rehardened, and the bell shrunk ever so slightly,enough that I couldn't reassemble it ,even with an old cage and balls and lapping paste. Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted June 22, 2006 Share Posted June 22, 2006 Bill, they are through-hardened AFAIK (but probably nowhere near as hard as OEM if my longfields are anything to go by) so you just need to find someone who can cut splines as they are (axle companies in the US seem to always buy hardened blanks and then cut the splines in). I did some machining on my longfields, wasn't too hard. Ben, What machining was required ? I once machined an induction hardened pirate copy of a AEU2522 cv to clear a rangerover spindle. I got the finish super smooth and radiused but the stubshaft failed, broke clean in the modified area. I then replaced it with an unmodified joint of the same brand and when it failed the stubshaft split into several sections along its length. Quote Link to comment Share on other sites More sharing options...
isuzurover Posted June 23, 2006 Share Posted June 23, 2006 Ben, What machining was required ? I once machined an induction hardened pirate copy of a AEU2522 cv to clear a rangerover spindle. I got the finish super smooth and radiused but the stubshaft failed, broke clean in the modified area. I then replaced it with an unmodified joint of the same brand and when it failed the stubshaft split into several sections along its length. Bill, since the stub shaft was the same diameter as the outer diameter of the splines, I machined it down by a very small amount, so that the stub axle need only be machined out to a slight interference fit with the splines. Keith (revor on pirate) from rovertracks does that on all the CVs he fits, and he hasn't had any fail. Bobby long from longfield posted on pbb that he has only had about 30 CVs fail from over 3000 pairs, so a 0.5% failure rate is pretty good, and he seems to be incrementally improving the design. Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 23, 2006 Share Posted June 23, 2006 Bill, since the stub shaft was the same diameter as the outer diameter of the splines, I machined it down by a very small amount, so that the stub axle need only be machined out to a slight interference fit with the splines. Keith (revor on pirate) from rovertracks does that on all the CVs he fits, and he hasn't had any fail.Bobby long from longfield posted on pbb that he has only had about 30 CVs fail from over 3000 pairs, so a 0.5% failure rate is pretty good, and he seems to be incrementally improving the design. "Keith (revor on pirate) from rovertracks does that on all the CVs he fits, and he hasn't had any fail." Read post 55 and 59 : http://www.pirate4x4.com/forum/showthread.php?t=476460 Quote Link to comment Share on other sites More sharing options...
Ex Member Posted June 23, 2006 Share Posted June 23, 2006 The failures on that thread are relating to the modified 2522s that Revor sells. ISUZUROVER is referring to the Longfield CVs that he sells. Quote Link to comment Share on other sites More sharing options...
ashtrans Posted June 23, 2006 Share Posted June 23, 2006 The failures on that thread are relating to the modified 2522s that Revor sells. ISUZUROVER is referring to the Longfield CVs that he sells. Sorry, looks like I misread that, it’s a little ambiguous Quote Link to comment Share on other sites More sharing options...
isuzurover Posted June 26, 2006 Share Posted June 26, 2006 Sorry if it was ambiguous. Keith (Rovertracks) sells LONGFIELD CVs and kits to fit them in Land Rovers. He machines the stubs down slightly. AFAIK none of the LONGFIELDS he has sold (with the machined stubs) have ever failed. I bought mine un-machined from Keith and machined them myself. Bobby Long (LONGFIELD) posted that he has had less than 30 longfields fail out of over 3000 pairs sold. They have a lifetime warranty against breakage, so presumably, all of the failed items would have been replaced for free. Quote Link to comment Share on other sites More sharing options...
DiscoDino Posted June 26, 2006 Share Posted June 26, 2006 So one has a choice, with the Longs, to either: 1. decrease the diameter of the stub shaft on the Long CV OR 2. increase the inner diameter of the Rover swivel housing If that is true? I've done #2, which I think doesn't put more stress on the CV... Am I missing out on something... Quote Link to comment Share on other sites More sharing options...
Michele Posted June 26, 2006 Share Posted June 26, 2006 One stub axle fitted the CV stub through, one needed boring. 0.2mm,no fuss. Quote Link to comment Share on other sites More sharing options...
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