jaluhn83
Full Access Member
Anyone have issue with a LUK SM clutch having a bad throwout bearing? I pulled the truck down last month to replace a bad ring gear and decided it would be wise to do the clutch at the same time even though the old one only had ~50k on it. New one seems to have a bad throwout - as soon as started it I had a high pitched squeal that went away as soon I stepped on the clutch petal but then showed back up intermittently while driving, usually as a 1-2 second chirp but sometimes 10-15 seconds. Similar to a belt squeal but not quite. No real pattern, though it seemed to happen more often at higher rpm and would chirp fairly consistently when going from load to coast. (ie reversing the load on trans). No evidence of slipping, vibration, etc, just obnoxious noise. Put about 1200 miles on it that way and then it stopped, but now has a fairly quiet metallic rumble and vibration through the clutch petal. I suspect one of the balls or rollers in there had issues somehow, but either way pretty sure it's the throwout. No changes to the trans, engine or clutch hydraulics and no reason to think I messed anything up putting it in.
I did notice that the throwout design was different on this kit than the last 2 I've had. Cant recall exactly how, but definitely a different design. IIRC date on manufacture on this was 2014. 1st one I got was new from LUK around 2005, 2nd was off ebay purchased around 2012-3 but no idea what the actual manufacture date was. I'm wondering if this is some new fancy POS cheaper design they went to?
Really ****** me off since I only replaced it because it's a pain to get in there with the turbo and I wanted to be safe.... and I'm in the middle of moving and going to be TDY for the better part of the next year almost all without any easy shop or spare vehicle and driving across the country and back... so I made sure everything was good and solid only to have to monkey around and now redo half of it for a $30 part I didn't actually need to fix!
I did notice that the throwout design was different on this kit than the last 2 I've had. Cant recall exactly how, but definitely a different design. IIRC date on manufacture on this was 2014. 1st one I got was new from LUK around 2005, 2nd was off ebay purchased around 2012-3 but no idea what the actual manufacture date was. I'm wondering if this is some new fancy POS cheaper design they went to?
Really ****** me off since I only replaced it because it's a pain to get in there with the turbo and I wanted to be safe.... and I'm in the middle of moving and going to be TDY for the better part of the next year almost all without any easy shop or spare vehicle and driving across the country and back... so I made sure everything was good and solid only to have to monkey around and now redo half of it for a $30 part I didn't actually need to fix!