dbrunone Posted February 8, 2014 Share Posted February 8, 2014 So I went today to investigate a soft "humming" noise while at highway speeds. The noise pitch follows wheel speed, not engine speed. So I started looking around underneath and found this. Could this be the source of my noise? I assume I have to replace the entire half-shaft to fix this...should I go ahead and replace the driver side also? Link to comment Share on other sites More sharing options...
bluesuby Posted February 8, 2014 Share Posted February 8, 2014 The right side boot is more prone to failure because of heat from the turbo. You'll need to inspect the driver's side boot and evaluate its condition. Boots can be replaced if the rest of the axle is sound. Yours looks like a recent tear. The humming is more likely a wheel bearing. If it increases with speed that's usually a bearing. If you get a banging noise when turning sharply at low speed, I'd say you'll need a new axle. Link to comment Share on other sites More sharing options...
dbrunone Posted February 9, 2014 Author Share Posted February 9, 2014 I just ordered a new half shaft assembly from rockauto (only $60 shipped). Can I drive on this thing until it starts making more noise, and worry about replacing it then? Link to comment Share on other sites More sharing options...
Markbo Posted February 9, 2014 Share Posted February 9, 2014 CVs are not like brakes and struts/shocks. You do not have to do both side at once. Worry about the other one when it starts spitting grease. They ALL do. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 9, 2014 Share Posted February 9, 2014 My new thought about the old axle, save it, get a boot and replace it for when the $60. axle boot fails in a few years. I'm on my second replacement left front axle in my 05, the right is still original. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
GEE-OTTO Posted February 10, 2014 Share Posted February 10, 2014 Same here my 09 driver side is starting to leak grease onto the lower control arm. Rather than using the boot replacement kit I figure a whole axle is best. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 10, 2014 Share Posted February 10, 2014 Not sure if a more expensive suto parts store axle is a better option then the $70 ones and the $200+ OEM's. I know on Civic's the $130 auto part store axles were better then the $50 free life time replacement ones. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Markbo Posted February 13, 2014 Share Posted February 13, 2014 I can't speak to the Subaru specifically but in general the New aftermarket are always better than the Reman aftermarket. The reman units always seem to come back. Link to comment Share on other sites More sharing options...
Stimu8 Posted March 4, 2014 Share Posted March 4, 2014 Has anyone ever tried the Dorman adhesive weld CV boots? Link to comment Share on other sites More sharing options...
Max Capacity Posted March 4, 2014 Share Posted March 4, 2014 I can't speak to the Subaru specifically but in general the New aftermarket are always better than the Reman aftermarket. The reman units always seem to come back. FWIW, my 100% new left front axle lasted only a few years. I piaid like $70 or 80 for it. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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