Driveshaft Upgrades

[Jap_Muscle]

hey guys,

its all finally coming along with my suspension needs. having just sourced some drag radials and in the midst of combining a soft shock/spring combo and then finally ordering a 1.5LSD, ive started to think about what i can do to make sure drive shaft components stay together, or at least try to

Don't know much about it but i was wondering;

How does the gearbox, tail shaft and other important components hold up with a 500hp rwd vehicle? what are the common weak links in a r34 gtt. and what should i be focusing on?

the car currently has a Nismo Coppermix Twin Plate which is mroe then enough for the 500hp.

p.s: the car is staying MT

any help much appreciated.

[GTRsean]

I'm guessing you would need to put in something like GTR rear drive shafts as the GTT one's have been known to shear.

Especially running drag tyres etc.

[Jap_Muscle]

when you say drive shaft are you talking about the entire thing?

[GTRsean]

Two of these puppies for starters.

Diff and tailshaft don't usually have trouble. You have, are going to upgrade the diff center anyway.

Not sure if the 6 bolt flange on the GTR shafts will bolt up to the GT-T halfshafts that slip into the diff though.

[Jap_Muscle]

thanks for advise sean,

apologies for the dumb questions but what exactly is that? is that the center diff? how much do these fetch for? and where can they be sourced?

dont aftermarket companies make these sorts of stuff?

how do the Rb25 gearboxes hold up?

Edited June 22, 2010 by Jap_Muscle

[GTRsean]

I know that some people put in a whole GTR rear cradle that has all the diff, shafts etc already there, Abo Bob is one member that has done the GTR upgrade, so he would be more helpfull with the details.

The 25 box is basically the same as a late R33GTR gear box so they are pretty strong, especially for RWD. Only weaknesses are third gear and synchros at high rev fast shifts.

Os giken and Par etc are a couple of gearset upgrades available.

http://www.skylinesaustralia.com/forums/R3...html&hl=gtr

http://www.skylinesaustralia.com/forums/Gt...html&hl=gtr

http://www.skylinesaustralia.com/forums/Di...html&hl=gtr

[Scradly]

Buy complete r32/33 GTR rear cradle.

Use the axles, hubs and diff out of it .

Throw the rest in the bin.

If you want a 1.5 way you will have to get that done at same time.

Fairly easy exercise. Wont need to worrie about breaking axles again.

I have just done the conversion into my R34 GTT

[Jap_Muscle]

scradly you have PM.

would like to have a chat about specifics =]

[Abo Bob]

Buy complete r32/33 GTR rear cradle.

Use the axles, hubs and diff out of it .

Throw the rest in the bin.

If you want a 1.5 way you will have to get that done at same time.

Fairly easy exercise. Wont need to worrie about breaking axles again.

I have just done the conversion into my R34 GTT

This is the right answer.

I paid $700 from a mate for the the lot from an R32 GTR. My traction control stopped working, and presumably the ABS, although the rear isn't really a problem in most ABS needing situations.

I did it because I snapped a drive shaft.

[turboedsloth]

can the billet gtr driveshafts that hi octane fit into the rear without having to mod everything? from what ive seen they come as just the splined shafts

[Abo Bob]

The diffs are different. Less splines on the GTR, so no, a GTR splined drive shaft will not go into a GTT diff.

[GTRsean]

Bob, you gotta clear you pm folder!

Was gonna say, when did you get rid of the 34?

[Abo Bob]

Fixed. Somehow it was over 300% full!

A couple of moons ago. Got two fireblades instead.

[s14_boosted]

you would probably wanna upgrade sway bar and traction brackets etc... rb25 box's are probably the strongest outta skyline boxes.... tail shaft will be fine... ur diff on the other hand might not last too long... if your serious and have the $ to back ya idd go borg warner 28 spline or 31 spline diff outta vl or r31... they run 9's in em just fine so you'd think they'd be good but you needa modify/change the brackets etc...

[turboedsloth]

it would take a shitload of modifcations to make them fit, the gtr swap sounds easier. 9 sec borgwarner diffs would require billet axles anyways, they have a tendency to twist and snap

[GUN_METAL_GTR32]

can the billet gtr driveshafts that hi octane fit into the rear without having to mod everything? from what ive seen they come as just the splined shafts

sorry just following up on this

if i put a gtr rear cradle in my car with a gtr 1.5 way diff can i use the hi octane billet drive shaft set

im in the same position as the op just with a shit load more power.

and ill be using the 25 box with os gearset inside it.

[Jap_Muscle]

^ be good to know that as wel. those babies look tough as.

i had a chat to SydneyKid (gary) not long ago and i remember him sayign that the R34 GTT already had GTR hubs and axles when Nissan built them?

i might have misheard but i do remember him saying the GTTs had similar drive train components to the GTRs. can anyone confirm what?

[Luke_ENR34]

Does anyone know if I can put gtr half shafts and drive shafts into a nismo bnr34 1.5way with a r200 housing?

Might be asking alot lol.

[Jap_Muscle]

lol @ dp luke