I'm there. Now that I know what the deal is I want that noise gone.
Differential "whine"
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
Likes: 194
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
Would love to hear your feedback after you get the diff installed with the 3.90 gears as I'm having Rick build a diff for me with 3.90 gears that I'll be having installed the week of the 15th sometime. Along with that is a new cam. I can hardly wait!!!!!
Pro
Joined: Jul 2010
Posts: 698
Likes: 2
From: Memphis TN
St. Jude Donor '11-'12-'13-'14-'15-'16-'17
Nice
Likewise, I'd like to get your feedback once you get your car back together. What cam are you going with?
BTW, I'm in your neck of the woods and I know a few people in Columbia.
Chaplain
BTW, I'm in your neck of the woods and I know a few people in Columbia.
Chaplain
1st Gear
Joined: Jan 2012
Posts: 1
Likes: 0
From: naples fl
Does it sound like this video? Mine started as a ringing between 50-60mph, and developed into a gear whine. Always at the same speed. I isolated it to the diff by putting on jackstands, and having a helper run it up to speed, while I snoop underneath on a creeper. It was easy to find the source. It was fixed with a new ring & pinion from RPM transmissions.
Pro
Joined: Jul 2010
Posts: 698
Likes: 2
From: Memphis TN
St. Jude Donor '11-'12-'13-'14-'15-'16-'17
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
I just got off the phone with Rick @ RKT and it looks like my diff will be ahead of schedule.
I'm going with a streetable cam mid 220s with a large split, .600 lift and a 114+4 LSA. Should be a street friendly cam with great under the curve torque. It looks like I'll have to find a new tire as the Invos don't hold the power now.
Can't wait to hear what the OP has to say about the gear swap. Next time I'm about to head to Memphis I'll shoot you a pm.
Pro
Joined: Jul 2010
Posts: 698
Likes: 2
From: Memphis TN
St. Jude Donor '11-'12-'13-'14-'15-'16-'17
Ok...
I'll look forward to hearing from you.
Be safe...
Be safe...
Hey Chaplain! Good to see other TN folks here. I'm in Memphis once a quarter or so. I do quite a bit of business with FedEx's aviation guys.
I just got off the phone with Rick @ RKT and it looks like my diff will be ahead of schedule.
I'm going with a streetable cam mid 220s with a large split, .600 lift and a 114+4 LSA. Should be a street friendly cam with great under the curve torque. It looks like I'll have to find a new tire as the Invos don't hold the power now.
Can't wait to hear what the OP has to say about the gear swap. Next time I'm about to head to Memphis I'll shoot you a pm.
I just got off the phone with Rick @ RKT and it looks like my diff will be ahead of schedule.
I'm going with a streetable cam mid 220s with a large split, .600 lift and a 114+4 LSA. Should be a street friendly cam with great under the curve torque. It looks like I'll have to find a new tire as the Invos don't hold the power now.
Can't wait to hear what the OP has to say about the gear swap. Next time I'm about to head to Memphis I'll shoot you a pm.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Thread Starter
Burning Brakes
Joined: May 2002
Posts: 831
Likes: 0
From: Albuquerque NM
Hey Chaplain! Good to see other TN folks here. I'm in Memphis once a quarter or so. I do quite a bit of business with FedEx's aviation guys.
I just got off the phone with Rick @ RKT and it looks like my diff will be ahead of schedule.
I'm going with a streetable cam mid 220s with a large split, .600 lift and a 114+4 LSA. Should be a street friendly cam with great under the curve torque. It looks like I'll have to find a new tire as the Invos don't hold the power now.
Can't wait to hear what the OP has to say about the gear swap. Next time I'm about to head to Memphis I'll shoot you a pm.
I just got off the phone with Rick @ RKT and it looks like my diff will be ahead of schedule.
I'm going with a streetable cam mid 220s with a large split, .600 lift and a 114+4 LSA. Should be a street friendly cam with great under the curve torque. It looks like I'll have to find a new tire as the Invos don't hold the power now.
Can't wait to hear what the OP has to say about the gear swap. Next time I'm about to head to Memphis I'll shoot you a pm.
Mstrahan, if you're getting your diff installed the week of the 15th, you'll be ahead of me, work has been keeping me out of town alot more than I figured and don't know when I'm actually going to be back in town to have the diff installed. I bet your vette is going to rock with that cam though!
Burning Brakes
Joined: Jun 2010
Posts: 769
Likes: 1
From: Columbia TN
I'll be posting a thread the week I get back. I completely understand work being crazy. It seems that the first of the year has brought quite a bit of business right from the start. That sure isn't a bad thing. It helps pay for this C5 addiction that I have.
Good luck with the install!
Good luck with the install!
Thread Starter
Burning Brakes
Joined: May 2002
Posts: 831
Likes: 0
From: Albuquerque NM
Got the vette back from the shop this morning! I'm happy I went with 3.90's doesn't seem like its taching all that much more. Only through with 2 of the 5 heat cycles that Rick suggests, but I can tell I made the right decision. The stock gears were pretty bad out of adjustment, there was plenty of "slack", you could turn the ring gear what seemed like quite a bit before feeling the pinion turn.
Also had the Elite Engineering tunnel brace put in, seemed to stiffen things up and make the squeaks a little less, but that could also be because of the new shocks just put in. Can't believe that even with only 58k miles one of the stock ones had no compression left in it!
It's SOOO nice to drive the vette and hear the mufflers rather than the rear end grinding away at itself
Also had the Elite Engineering tunnel brace put in, seemed to stiffen things up and make the squeaks a little less, but that could also be because of the new shocks just put in. Can't believe that even with only 58k miles one of the stock ones had no compression left in it!
It's SOOO nice to drive the vette and hear the mufflers rather than the rear end grinding away at itself
Supporting Vendor
Joined: Apr 2011
Posts: 3,332
Likes: 194
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
Got the vette back from the shop this morning! I'm happy I went with 3.90's doesn't seem like its taching all that much more. Only through with 2 of the 5 heat cycles that Rick suggests, but I can tell I made the right decision. The stock gears were pretty bad out of adjustment, there was plenty of "slack", you could turn the ring gear what seemed like quite a bit before feeling the pinion turn.
Also had the Elite Engineering tunnel brace put in, seemed to stiffen things up and make the squeaks a little less, but that could also be because of the new shocks just put in. Can't believe that even with only 58k miles one of the stock ones had no compression left in it!
It's SOOO nice to drive the vette and hear the mufflers rather than the rear end grinding away at itself
Also had the Elite Engineering tunnel brace put in, seemed to stiffen things up and make the squeaks a little less, but that could also be because of the new shocks just put in. Can't believe that even with only 58k miles one of the stock ones had no compression left in it!
It's SOOO nice to drive the vette and hear the mufflers rather than the rear end grinding away at itself
Keep the updates coming. I hope to be strapping my junk onto a pallet soon.
Advanced
Joined: Apr 2014
Posts: 51
Likes: 0
From: Wisconsin
Okay I had a new diff put in with 3:42 and everything seems fine until the spring when I pulled my car out of my garage I've been debating I thought it was my fuel pump but I have the same typical problem when I am cruise control at 65or70 i have a loud whining or hum coming from the back. It also seems to make a whine when I come to a stop sign but if I am cruising at 40 miles an hour and put the car in neutral there is no hum no matter what I rev it to
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Is the HUM FREQUENCY speed dependent? In other words, does the frequency change with drivetrain loads and speed.
What year C5 do you have?? 97-98 C5s were KNOWN to have noisy fuel pumps.
Open the fuel tank cap with the engine running and you can hear your pump.
What year C5 do you have?? 97-98 C5s were KNOWN to have noisy fuel pumps.
Open the fuel tank cap with the engine running and you can hear your pump.
Last edited by Bill Curlee; Apr 5, 2016 at 01:52 PM.
Advanced
Joined: Apr 2014
Posts: 51
Likes: 0
From: Wisconsin
I have a 2003 and I did a new diff at 52800 I I stored the car from November til last month so about 5 months in heated garage after I took it out I drove it for about 40 miles and got some food and then I'm back on the highway with the radio off I could hear a good whine with the cruise control on but if I let go of throttle it stops if I give it throttle I don't hear it if I put in neutral and I don't hear nothing and if I rev It Up in neutral I still don't hear any
Advanced
Joined: Apr 2014
Posts: 51
Likes: 0
From: Wisconsin
I just checked the diff fluid in my garage pretty level and it is still full right under the fill plug. Maybe after sitting for so long and not driven I might just need to do some Figure 8 in the parking lot to open up the pockets
Advanced
Joined: Apr 2014
Posts: 51
Likes: 0
From: Wisconsin
One more thing sorry about my OCD when I tightened fill plug after I torqued:20 I took a regular wrench and tightened little bit more about a half centimeter hopefully I didnt over torque
Last edited by Gamdrunk; Apr 5, 2016 at 05:22 PM.
2nd Gear
Joined: Jul 2016
Posts: 2
Likes: 0
Whinning sound from stereo
I have a 2009 Z06 original owner. When i drive and hit a bump I start hearing a whinning sound of the motor rpm, if i turm off the radio and touch any electrical device the sound comes from the radio. I took it to the dealer and they were unable to figure out. This was the first chevy i have ever bought. The noise is similar to what my 1970 VW Bug made when my battery was no good. Replaced battery, still making noise. Love the car hate the noise, has turned me off from ever buying another vette. Any help greatly appreciated.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Any good ALTERNATOR/STARTER Repair shop can easily fix that issue.. Sounds like you have alternator whine. The filtering in the regulator is likely weak or going bad.That easy to fix. Just have them rebuild the alternator and replace the voltage regulator.
BC