|
||
|
|
||
04-29-2012, 07:37 PM
|
#1 |
|
Registered User
 Join Date: Jul 2005
Location: Montreal
Posts: 207
|
rear end vibration
noticed i have vibration and some noise coming from the rear end. lets say i get the car up to 70-75 then let off the gas you can feel some vibration, just for a sec or two. anyone know what might cause it. differential angle? unbalanced wheel? gears??? only happens above 70ish
__________________
2003 torch red Mach 1 Current Mods: - PHP Intake Spacer - MAC O/R ProChamber - Borla Catback Exhaust - Mrt 3.5" Tips - 2" drop - mm camber plates - Roush 18x9, 18x10 - bfg kdw's 275, 295 - 4:10 gears - Jlt Filter - Jlt Rai - Sct Xcal2 |
|
|
|
05-04-2012, 09:42 PM
|
#2 |
|
Registered User
Join Date: Jul 2005
Location: Montreal
Posts: 207
|
Re: rear end vibration
i just replaced the lower control arms 2 weeks ago and even if it did lower the car a bit more( was already lowered 2") everything was fine, didnt notice anything. as soon as i put 2 new nittos 555r in the back i started feeling it. had the wheels rebalanced yesterday and its still doing it. get her up to 60 and when you let go of the gas, vibration coming from the rear...anyone gotta clue???
__________________
2003 torch red Mach 1 Current Mods: - PHP Intake Spacer - MAC O/R ProChamber - Borla Catback Exhaust - Mrt 3.5" Tips - 2" drop - mm camber plates - Roush 18x9, 18x10 - bfg kdw's 275, 295 - 4:10 gears - Jlt Filter - Jlt Rai - Sct Xcal2 |
|
|
|
|
05-04-2012, 11:10 PM
|
#3 |
|
Air Power!!
 
Join Date: Jun 2007
Location: SHAW AFB SC, Columbia SC
Posts: 654
|
Re: rear end vibration
Could be tons of things but my first guess is your 4.10s. Were they installed by somebody who knew what they were doing? Did they order the install kit or just re-use the bearings and racers? If so they did not do the gears right you may be in for some serious hurt pretty soon. Might wanna check that out.
__________________
2013 Grand Sport Corvette. 3LT, 60th Anniversary, Dual-mode performance exhaust, GS Chrome Wheels, A6 Paddle-shift, Cyber Grey Metallic, Titanium interior, Targa. 2003 DSG MACH 1 3650 IUP. 2008 Tiburon GT limited-Metallic Black-Sleeping w/ the enemy. 2004 Mustang GT-Red-Sold 2001 Mustang- Forest Green-Sold Disabled Veteran United States Air Force. Hoorah Air Force! |
|
|
|
|
05-05-2012, 08:22 AM
|
#4 |
|
Registered User
Join Date: Nov 2011
Location: Arcadia, California
Posts: 452
|
Re: rear end vibration
Money on unbalanced wheels, happened to my buddy in his gt.
__________________
-You just can't weld all your problems- |
|
|
|
|
05-05-2012, 09:57 AM
|
#5 |
|
Registered User
Join Date: Jul 2005
Location: Montreal
Posts: 207
|
Re: rear end vibration
the gears have been in for 2+ years now and altho they have started to whine, ive never had a problem with them. ill get the wheels rebalanced. when i lest the tire shop, the weights fell off within a block on both wheels. had the rebalanced by my mecanic but maybe he didnt do it right...i only want weights on the inner lip of the wheel, none glued to the wheels, think that might affect someting?
__________________
2003 torch red Mach 1 Current Mods: - PHP Intake Spacer - MAC O/R ProChamber - Borla Catback Exhaust - Mrt 3.5" Tips - 2" drop - mm camber plates - Roush 18x9, 18x10 - bfg kdw's 275, 295 - 4:10 gears - Jlt Filter - Jlt Rai - Sct Xcal2 |
|
|
|
|
05-06-2012, 09:14 AM
|
#6 |
|
Speed addict
Join Date: Apr 2007
Location: Miami, FL
Posts: 648
|
Absolutely. To properly balance whe wheel you must balance both the inner and outer lips on the rim. There is nothing wrong with stick on weights. Ive been using them for years.
__________________
Best time 1/8th mi--7.65@90MPH 2003 DSG Mach 1 99/01 Cobra front bumper Darrin-Matic w/3500 stall converter 100 Shot 4.10 Gears Stock Springs KYB AGX adjustable shocks/struts tubular LCAs UPR dbl adj UCAs Custom SCT Tune 255/40/18 front 295/35/18 rear FR500 Wheels Custom RAI UPR O/R X-Pipe Roy spacer Flowmaster 40's I may not be as good as I once was, but I'm as good once as I ever was." "Just an old man having fun" |
|
|
|
|
05-06-2012, 12:15 PM
|
#7 |
|
Can't be bridled
 
Join Date: Sep 2007
Location: Texas
Posts: 7,006
|
Re: rear end vibration
Sounds more like a drive line vibe by how you describe it coming on when letting off the gas. Back lash might have loosened up and that's also why you are getting a whine from the gears.
If its tire related, increase speeds and the vibe should get stronger and stronger, regardless of when you are on or off the gas.
__________________
2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
|
|
|
|
05-06-2012, 03:50 PM
|
#8 |
|
Registered User
Join Date: Jul 2005
Location: Montreal
Posts: 207
|
Re: rear end vibration
I'll try properly balancing the wheels 1st as im sure you can't adjust backlash without going in the differential.we'll see what it does.
__________________
2003 torch red Mach 1 Current Mods: - PHP Intake Spacer - MAC O/R ProChamber - Borla Catback Exhaust - Mrt 3.5" Tips - 2" drop - mm camber plates - Roush 18x9, 18x10 - bfg kdw's 275, 295 - 4:10 gears - Jlt Filter - Jlt Rai - Sct Xcal2 |
|
|
|
|
05-07-2012, 08:56 PM
|
#9 |
|
Registered User
Join Date: Jul 2005
Location: Montreal
Posts: 207
|
Re: rear end vibration
had the wheels rebalanced today and the vibration is still there. im really starting to think that its my pinion angle thats causing itthe car is now lowered more than 2 inches. i need some new uca since one is busted, so ill get some adjustable and see if that fixes things
__________________
2003 torch red Mach 1 Current Mods: - PHP Intake Spacer - MAC O/R ProChamber - Borla Catback Exhaust - Mrt 3.5" Tips - 2" drop - mm camber plates - Roush 18x9, 18x10 - bfg kdw's 275, 295 - 4:10 gears - Jlt Filter - Jlt Rai - Sct Xcal2 |
|
|
|
 |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|
<
Linear Mode
