Upgraded axle half shafts?

[Cjmartz2k]

So, I'm on my 3rd driver side half shaft now. The latest one let go around the top of first when I started hooking---it started to pull awesome and then *SNAP!!!* bang bang bang bang....... It snapped off right at where the splines go into the hub. It left like a 2-3 inch jagged snub in the hub. I'll try and get a pic up.

So anywho, I've got another stocker in there right now, but obviously I'm going to need to do something about this. One suggestion I've heard is to use GTR axles, but then I have to use GTR hubs, and I think the diff too which means the entire GTR rear subframe. That's going to be a bit of a pain in the but. Do you guys know of anything else better? Are 300zx half shafts bigger? Do they make any kind of chromoly shafts or anything?

O, and this is on a R32 GTSt BTW. I know there is a Skyline specific forum on NICO, but it's just one "how do I import a skyline" or "how can I bring my car back" question after another with zero tech. I've got the 5 bolt diff to half shaft pattern with 5 bolt hubs BTW.

[Coolwhip]

slight modifications needed for a Q45 rear end and you have a 30 spline input shaft over your 29 spline.

You can even go to the GTR rear end which involves more work

[Cjmartz2k]

By 30 spline input, do you mean the splines going into the hub at the wheel, or axle stubs going into the diff? My problem is breaking the outside portion right where it goes into the hub. I need to post up a pic

[Coolwhip]

Ah! So its the axles you need to upgrade. Yea, hubs and all will need upgrading and I suggest going with the Mazworx kit.

[rb25drag]

the driveshaft shop makes a set of beefed up axles as a stock replacment part. 1 set rated a 600hp and another rated at 1000hp.this is wat im going with eventually.also are you replacing your stock axles with used axles? and how much power are you making?i have snapped both my axles (welded differential) and i replaced them with oem stock (60$ a piece from factory) and i have not broke one since.also when you say you was spinning and it started to hook and broke, was you wheel hoping? that will break those axles in a second.also is your rear end still 1 wheel peal? lol. if so then you either need to upgrade to a lsd or just weld your spider gears like i did on mine. just all in wat you prefer man.

[Coolwhip]

yea wheel hop will kill them every time.

What tires and suspension are you running btw?

[Cjmartz2k]

Sorry, not enough info in the first post. I've got a Nismo 2way R32 GTSt diff with 4.08 gears and Cusco Zero coilovers (not the best for drag, I know). I've also got aluminum subframe bushing collars, and I'm not experiencing wheel hop. I'm making ballpark mid 600's at the motor, and I'm pretty sure that's the reason they are snapping. Like I mentioned before, this is the second one I have broke.

How much am I looking at with the Mazworx or driveshaftshop.com? Are they going to be one-off pieces, or do they already offer them?

[Coolwhip]

i assume the GTST axles are the same length as the s13 or s14 no?

If so they are shelf items at $1800 for the Mazworx axles hubs and inputs

[Cjmartz2k]

So I just found the driveshaftshop.com and mazworks axles. $1599 and $1799 respectivly. Any other ideas? For that kind of dimp, I think I can just got get several spare half shafts from the junkyard and keep them in the trunk

[Coolwhip]

hmmm, true.

Do you have pics of the carnage man? Trying to think of another cheaper solution.

Perhaps the axle guys i know could shed me some knowledge on this since they're shop Talon was breaking them like crazy before.

[jdmser]

I read something the other day about somebody breaking the Mazworx axles so they switched to the Q45 diff and Q45/Z32 alxes and no more problems. That's what I plan on doing when I decide what transmission I'm going with.

[Coolwhip]

that was Riggs

[BoostFab]

definately look into upgrading to the q45diff and q45 axles+z32-TT axles. it's a lot beefier. i believe the lenght is the same as the r32's

[Cjmartz2k]

On it like a fat kid on a cupcake. Thanks guys!!

[500hpSilvia]

q45 rear is great i put it it my s13 but gears are long.im currently looking for a set of gears right now. i have a sr20 built (520hp) with a z32 trans with the q45 rear (3.69) im looking for some 3.93 or 4.08 .. i will spin first and destroy second but third the car just dies.. any one have some info on what you can use in that rear end.. ive heard the gts-t gears will work, but have not been abel to verify that yet..any info would be great and sorry if i stole your thread! lol.. [email protected]

[SullivanRacing06]

so are there any lower cost axle options for a "breakign half shaft" problem? dss is still way over a 1000.00, so ne thign else?

[500hpSilvia]

a Q45 diff is maxx $100 from a yard and the axels are another $100 max. so for $200 you get a real beefy rear end...

[Carl H]

user name superhatch here on nico has a vh45 drag car running a gtr final drive to keep a decent ratio in the car...might want to contact him about it to see what was needed mod wise to fit.the gtr diff is a r200 unit like the q45 but uses the nasty axles that the z32 tt has.

[500hpSilvia]

thank you sirr..

[Cjmartz2k]

user name superhatch here on nico has a vh45 drag car running a gtr final drive to keep a decent ratio in the car...might want to contact him about it to see what was needed mod wise to fit.the gtr diff is a r200 unit like the q45 but uses the nasty axles that the z32 tt has.

So the pinion/ring gear inside the GTR diff (which I thought was called a R205) is the same as a R200 from a GTSt.

[500hpSilvia]

im lost.. lol i have a s13 that had a hicas lsd in it but i kept snapping axels so i upgraded to the q45 that has the bigger rear axels that are also found in the z32 TT z meaning i have the z32tt hubs as well, now what i need to know is what rear end gear or rear end will work on my car to replace the 3.69 final gear on my current rear end while still using the beefy axels/diff that i have on it now... im lost...

[RB24D]

Anyone know if the j30 are any diffrent from stock s14? I have the j30 lsd in th rear of mine and do not want to carry axels in my trunk And do not want to drop 1g to 15k on aftermarket axels.

[BHFR-GTR]

i was looking into the same thing with my car, i know i am going to break the axles, if you go to rb-performance.net he has a set of axles on there he says that are rated to 1000hp for like 650 they only come in 5 blolt i think, i was thinking abou them but didnt know if anyone had tried them

[Carl H]

lol, they're proly stock *** stock 5bolt axels nothing amazing about them...they are stronger than the 6 bolt (3x2 groups) but nothing trumps the spread 6bolt...having installed a set in my s13 project they are damn near indestructable looking.

*edit*they look exactly like j30/jdm r32/33/s13/s14 axles...with fancy blue boots.

[BHFR-GTR]

haha oh yea, def dont want to pay that much for some stock axles, i have a 300zx na diff and im pretty sure that i can just use stock 240 5 bolt axles right??

[Carl H]

if you use a z32 na final drive you have to use the j30 axles, z32 might not fit due to size differences (length).

[bmadd2402]

did you look at the LS Auto axles? they claim to be beefier shafts... haven't really looked too much into it. You have to get them built, but i'm sure that would be cheapr than 1500-1700 bones.

[BHFR-GTR]

i will have to look into that thanks