IRS Halfshafts

SLO AU XR8 · 18-01-2010, 02:22 AM

Does anyone know if you can get better/stronger halfshafts for the AU IRS? I've just snapped a second halfshaft in the last 3 months. Some how I don't think stock halfshafts are very strong at the hub spline.

T3man · 18-01-2010, 08:15 AM

This is not a usual problem. What mods do you have?

Try any of the driveline specialists is my only suggestion. Diff Tran Spares for example.

RG · 18-01-2010, 08:54 AM

Nope you can't.

The series 2 and after are however thicker and stronger than series 1.

SLO AU XR8 · 18-01-2010, 11:14 AM

Quote:

Originally Posted by T3man

This is not a usual problem. What mods do you have?

Try any of the driveline specialists is my only suggestion. Diff Tran Spares for example.

the only mods that I have are a catback and a mechanical locking diff centre. Are S2 halfshafts compatible with S1 ABS?

RG · 18-01-2010, 11:23 AM

Quote:

Originally Posted by SLO AU XR8

the only mods that I have are a catback and a mechanical locking diff centre. Are S2 halfshafts compatible with S1 ABS?

Should be, I can't understand why you are breaking them though. The only other one I have heard of that has done that it CAT600's TerminatoR, I've only ever managed to slightly bend one of mine.

T3man · 18-01-2010, 11:26 AM

Simple solution - get rid of the cause of the problem. You will be forever breaking shafts with a mechanical locker diff. No brainer. The only place for locker diffs is playing in the dirt. On the hard top they are a total waste of money. Sorry to sound harsh but that is the fact of it.

RG> There is one other known case of one breaking and it was via a clutch dump at 5000 rpm at WSID on VHT soaked tyres. LOL. NO, it wasn't me!

SLO AU XR8 · 18-01-2010, 12:13 PM

Quote:

Originally Posted by RG

Should be, I can't understand why you are breaking them though. The only other one I have heard of that has done that it CAT600's TerminatoR, I've only ever managed to slightly bend one of mine.

I can't understand it either, I don't do burnouts, dont get it to lock unless I'm in an off street area like a skidpan/Willowbank. The thing that is getting me is that they are snapping AT the hub.

**CAT600** · 18-01-2010, 06:49 PM

Check wheel bearings. Mine did fail halfshafts (at the hub also) with 790rwhp and I found that the newly replaced rear IRS wheel bearings had been fitted with factory faulty bearings and the stub/shoulder of the CV was the only thing keeping the bearing semi-tight.

I think that may have been a part of the broken halfshaft problem personally...... the car had never failed one with the old bearings and I only replaced them due to age and very slight movement.

Daniel

SLO AU XR8 · 18-01-2010, 09:40 PM

Quote:

Originally Posted by CAT600

Check wheel bearings. Mine did fail halfshafts (at the hub also) with 790rwhp and I found that the newly replaced rear IRS wheel bearings had been fitted with factory faulty bearings and the stub/shoulder of the CV was the only thing keeping the bearing semi-tight.

I think that may have been a part of the broken halfshaft problem personally...... the car had never failed one with the old bearings and I only replaced them due to age and very slight movement.

Daniel

I'll replace them when I put new halfshafts in, until then, the car can sit idle for a while!