 Noises from my rear end... |
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 Mar 17 2016, 05:02 PM
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Experienced Member  Group: Advanced Members Posts: 2,038 Joined: 3-March 10 From: Huntersville, NC Member No.: 9,105  |
Not the kind that make my 2 year old little girl giggle, but clunking from the diff of my stock 10 bolt.
I noticed it after my track day last week. I'll try to get a video of it tonight. If I have the engine off and let the car roll backwards down my driveway, I hear clunking. Probably not supposed to do that, huh? I did get some nasty axle hop a couple of times, I know that's hard on it. If it's bad, I have a stock axle off my 99 parts car. I just need to swap the brake lines and brakes over. I believe that's the only difference. |
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Mar 19 2016, 02:56 AM
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Experienced Member Group: Advanced Members Posts: 2,290 Joined: 4-May 04 From: Kenvil, NJ Member No.: 331 |
The noise you're making in the second video is from the space between the ring and pinion gears. You get them making that noise because you're rocking the wheel back and forth.
The sound you hear in the first video happens when the car is going forward only, not changing direction. How are the front bearings? |
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Mar 19 2016, 03:27 AM
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Experienced Member Group: Advanced Members Posts: 2,038 Joined: 3-March 10 From: Huntersville, NC Member No.: 9,105 |
QUOTE (slowTA @ Mar 18 2016, 10:56 PM)  The noise you're making in the second video is from the space between the ring and pinion gears. You get them making that noise because you're rocking the wheel back and forth. The sound you hear in the first video happens when the car is going forward only, not changing direction. How are the front bearings? They are fine. Noise is definitely coming from the axle area. When I took that first video, in the car and letting it roll with the steering wheel turned slightly right, I could feel every clunk. It's like the rear end was binding or something. But when I drove it today, everything seemed fine. I can kinda hear some noise back there at parking lot speeds, but the exhaust drowns out most of it. Like I said, that noise only happens with the wheel turned, even just slightly. The car is on the lift, when I spin the wheels, they are both moving together, there is no noise. I'm kinda at a loss here. I had royal purple in there, which has the modified already. Could that be causing a problem? Maybe I should just fill the pumpkin with a different flavor of gear oil and see if it likes that better. If it is still making a racket, I could take it to somebody who knows what they are doing and pay them $50 to diagnose it. Or, since there wasn't any metal shavings, just keep running it and see what happens. What gear oil do you guys use? |
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Posts in this topic
Steve91T Noises from my rear end... Mar 17 2016, 05:02 PM
Steve91T Never mind. I forgot I have weld in relocation bra... Mar 17 2016, 05:51 PM Steve91T Quick question. While the car is on the lift, I tr... Mar 18 2016, 12:29 AM CrashTestDummy Are you sure you don't have enough friction mo... Mar 18 2016, 02:25 AM
Steve91T QUOTE (CrashTestDummy @ Mar 17 2016, 10:2... Mar 18 2016, 03:00 AM Steve91T I'll pop the cover tomorrow. If the posi is ba... Mar 18 2016, 03:47 AM trackbird What year rear end is it? The LT1 cars had clutch ... Mar 18 2016, 11:51 AM Steve91T I think this is it.
It's an LT1 rear and... Mar 18 2016, 12:17 PM Steve91T Ok I've been reading. The torsen out of my 99 ... Mar 18 2016, 01:15 PM trackbird A good clutch type LSD is always better than a Tor... Mar 18 2016, 04:19 PM Steve91T Really? Everything I read said torsion is better f... Mar 18 2016, 04:50 PM dailydriver QUOTE (Steve91T @ Mar 18 2016, 12:50 PM) ... Mar 18 2016, 07:28 PM SuperMacGuy The thing with Torsen is that they essentially wor... Mar 18 2016, 04:53 PM Steve91T Yep I think these are bad noises.
http://youtu.... Mar 18 2016, 06:23 PM Steve91T I pulled the cover off. I was fully expecting part... Mar 18 2016, 09:22 PM Blainefab Looks fine but if the clutch packs are shot that w... Mar 18 2016, 09:29 PM Steve91T Well it's dead silent when rolling straight. ... Mar 18 2016, 10:32 PM Steve91T U joints look good and there's no play that I ... Mar 19 2016, 02:24 AM Steve91T I think I misunderstood what you were saying.
Me... Mar 19 2016, 04:42 AM Steve91T Someone one ls1texh said synthetic gear oil with t... Mar 19 2016, 01:01 PM Steve91T Ok so I picked up some friction modifier from GM a... Mar 19 2016, 03:53 PM Steve91T The guys on ls1tech say I need to use regular gear... Mar 19 2016, 04:51 PM 79T/A With a clutch LSD, always use non-synthetic. Many ... Mar 19 2016, 11:04 PM dailydriver QUOTE (79T/A @ Mar 19 2016, 07:04 PM) Not... Mar 20 2016, 08:51 PM Steve91T Oh I couldn't care less how much noise it make... Mar 20 2016, 12:36 AM Steve91T I've been searching the web for way too long n... Mar 20 2016, 03:48 PM ReEntryRacer QUOTE (Steve91T @ Mar 20 2016, 08:48 AM) ... Mar 22 2016, 02:45 AM Steve91T Update: I filled the diff with Lucas regular 80w90... Mar 23 2016, 02:29 PM CrashTestDummy Yep, a lot of the synthetic stuff is, well, pretty... Mar 23 2016, 02:57 PM |
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