Half Shafts! *snap*
Posted 12 July 2009 - 05:26 PM
broke my first half shaft in the 1via yesterday not sure if its a common place but it was a super clean snap just before the spline near the outer end.. will put pics up tonight
now ive been running my car witha S14 rear subframe etc.. and i have the 6 bolt style half shafts. are these S14 ones? as i got spare half shafts but they are from a S13.
my old 180 has the 5 bolt half shafts so im guessing the 5 bolt ones are s13 correct??
just wanted to ask what half shafts are what?? and whats the strongest 6 bolt half shaft you can get?? if you can??
any input would be great
oh and i wasnt even drifting when i broke the half shaft... was putting the car in the shed
Posted 12 July 2009 - 05:33 PM
the only half shafts that are thicker are gtr ones
s14 are the same size as r33
Posted 12 July 2009 - 05:44 PM
so S13, S14, R33 all the same?? just diferent styles? 5 bolt and 6 bolt etc..
Posted 12 July 2009 - 05:46 PM
Posted 12 July 2009 - 05:57 PM
if they are the 6 bolts spread out evenly then they are gtr
the 5 bolt ones are skyline and late model silvia
just get gtr ones they are thick as f**k and strong as hell
but you will need to change hubs and diff
otherwise go 5 stud as they are stonger then the factory s13 6 bolt
and the half shafts and driveshafts are the same size
Posted 12 July 2009 - 06:04 PM
Posted 12 July 2009 - 06:15 PM
and cheers JDM032, ive got the 6 bolt one with the 2 in 3 places style if i snap another one ill just have to save up and change to GTR rear end
Posted 12 July 2009 - 06:28 PM
so much stronger then the 6 bolt stuff, especially for the power u got
otherwise yeh, gtr rear it
either way both are gonna be better then wat u got now, plus u need it for winton dont ya?
Posted 12 July 2009 - 07:14 PM
I broke more after the show too.
You have three solutions.
1. Change to 5-bolt shafts. They are only marginally stronger but still slightly stronger.
2. Buy billet driveshafts or custom driveshafts from the drive shaft shop. I jsut got some from the US but they cost around $1200AUD plus delivery. I havn't used them yet but from looking at them and based on being rated for 850hp they should be fine. They aren't cheap but at least you dont have to buy new diff, centre etc to suit GTR. The ones I have use Porsche competition CVs with thicker shaft ( GTR size) and seem to be pretty awesome.
3. GTR rear end. Need GTR diff, new GTR diff centre, GTR driveshafts. Bolts in but must change spline in the knuckle to suit. Virtually un-breakable but they are second hand so depends what they've been through. Pain in the arse as have to chagne a lot.
I went for driveshaft shop as I already have 4.3 diff with Nismo centre and Trust cover extension so easier jsut to get replacement shafts.
I'll post up pics soon.
Posted 12 July 2009 - 07:49 PM
and yeah ill chuck in 2 more half shafts this week before winton.. ive got 5 bolt half shafts sitting here also but dont have the things that go into the diff lol..
should be right im still shocked at how clean the snap is... it look like its suppose to be like it
Posted 12 July 2009 - 09:00 PM
must have been on the way out coz i couldnt see how that was too much force??? but the snap in the half shaft was so clean... it doesnt look right thats for sure
lucky it happened in my shed instead of winton this weekend
Posted 12 July 2009 - 09:10 PM
i would just chuck that spare set allan gave ya mate and arrange another spare set to take to winton.... upgrade later imo
Posted 13 July 2009 - 08:12 AM
broke another one pulling second
broke another one clutch kicking 2nd
I have a very aggressive clutch though.
5-bolt are stronger but only marginally. CTS car used 5-bolt for a whole season but changed them every event to be on the safe side. then they went GTR rear end and never touched them.
5-bolt is only a very small upgrade but if you have 320rwkW there is a good chance youll break them too.
it really comes down to how you drive and how much time and money you want to spend on changing them
Posted 13 July 2009 - 08:20 AM
When I got JV's old S14 [but fitted with 5 bolt] I broke the only half shafts I've ever broken at Parklands
running with the super savage HKS clutch it had in it, it made a loud noise
so I did exactly what you did [and any normal drifter would do]
and skid tested it
and broke the other side as well...
After fitting the softer Nismo Coppermix clutch I've not broken one since
I've often wondered what makes the 5 bolt stronger than 6 as the shaft size seems the same and its not the bolt holes it breaks through.
I've also wondered why in early S13's [most CA18's] 6 bolt were fitted, then they went to 5 bolt, then towards and including S14/15
they went back to 6 bolt......
Maybe just purely cost cutting? nfi
Posted 13 July 2009 - 10:17 AM
my clutch is one of those NPC twin un-sprung 5-puck clutches
Im gonna try a Nismo clutch in my 14 next ( have single in my 13 and its 110% awesome)
I hope the Coppermix twin plate can handle the power though. 400rwkW on E85 is adequate for time attack
Posted 13 July 2009 - 12:37 PM
Posted 13 July 2009 - 03:04 PM
anyway im sure as all hell i would have broken heaps if i had a strong clutch.. kinda happy i dont
new half shafts are going in tonight.. just some random 180 6 bolt ones.. if anyone in adelaide has anymore lying around let me know and ill buy them
Cheers for the words everyone
Posted 13 July 2009 - 04:30 PM
also im sure that water has got into it also as the sh*t looks nothing like grease
nothing like a 1 wheel skid
Posted 13 July 2009 - 05:01 PM
Posted 14 July 2009 - 10:01 AM
CV is mental, stuff all play. rated to 850hp
sorry about crappy phone pic
Posted 14 July 2009 - 11:09 AM
also im putting 5 bolt halfy's in tonight fingers crossed i get the stub axle thingos
Posted 14 July 2009 - 12:01 PM
I've got a set of GTR rear half shafts and GTR rear hubs here to go in my new car but I've got more coming if you want to upgrade Jake! Just need the output shafts from a GTR diff I'm pretty sure.
Posted 14 July 2009 - 12:09 PM
Posted 14 July 2009 - 01:25 PM
Posted 14 July 2009 - 02:11 PM
Posted 14 July 2009 - 05:25 PM
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