Noise in trans or differential?
Thread Starter
Racer
Joined: Aug 2009
Posts: 431
Likes: 54
From: Rivesville West Virginia
Noise in trans or differential?
Rocked my Corvette back and forth with my hand on the rear tire. Engine was off and in park.
Heard noise under rear and felt it in the wheel. Axle nut maybe?
Heard noise under rear and felt it in the wheel. Axle nut maybe?
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Axle nut is easy to do, but look up the procedure, too, for torque number and loctite usage. (new lock nuts are inexpensive) If that doesn't work grab the wheel/tire to see if wheel bearing. You might also look at end links, too. All before trans or axle because these are less expensive!
Thread Starter
Racer
Joined: Aug 2009
Posts: 431
Likes: 54
From: Rivesville West Virginia
Axle nut is easy to do, but look up the procedure, too, for torque number and loctite usage. (new lock nuts are inexpensive) If that doesn't work grab the wheel/tire to see if wheel bearing. You might also look at end links, too. All before trans or axle because these are less expensive!
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Rotating the tire in a forward/rearward motion will feel play in the CV joints, differential, and transmission. A small amount of play is normal.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
Thread Starter
Racer
Joined: Aug 2009
Posts: 431
Likes: 54
From: Rivesville West Virginia
Rotating the tire in a forward/rearward motion will feel play in the CV joints, differential, and transmission. A small amount of play is normal.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
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Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
At one time the factory spec was 160 and later it changed to 140. I used 140 and with the jam nut too.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Mine kept coming loose at 150 ft*lbs. Gave them an extra bit of twist past that and they finally have stayed put. Probably 160-165 I'd guess.
Also, agree with previous answer.. if you're just moving the wheels around with everything off you're going to hear noises, that doesn't mean there's an issue.
Also, agree with previous answer.. if you're just moving the wheels around with everything off you're going to hear noises, that doesn't mean there's an issue.
Thread Starter
Racer
Joined: Aug 2009
Posts: 431
Likes: 54
From: Rivesville West Virginia
Rotating the tire in a forward/rearward motion will feel play in the CV joints, differential, and transmission. A small amount of play is normal.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
Wheel bearing play is felt by grabbing the tire at 6 and 12 o'clock and pushing with one hand while pulling with the other.
End link play is felt by grabbing the tire at 3 and 9 and doing the same push/pull.
Axle nut play is felt when doing both the 6 and 12 plus the 3 and 9 motions.
If you ever need to replace an axle nut ($2-3), after you locktite and torque it, take the old nut and add it on. You can check to see if it's ever moved by drawing a line on the nut and the axle.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Keep in mind that the axle nuts may not be backing off. Continual re-torquing, especially at the higher torque, may actually be stretching the axle. I have read where some axle failures by have been the result of over torque. It is a good idea to double nut the axle. That way you can not only keep nut tight at lower torque, but can tell if the nut has moved.