REAR END OFF CENTER - ZR-1 Net Registry Forums

STEWVETTE · 11-11-2011

I have seen online that some c4's have rear ends that appear to be off center and this might be a common problem. I have measured out my frame and all is in spec. And the rear end is centered in the frame. But with wheels and tires mounted on the car the drivers side wheel is out 1/4 inch and the passengers side is in 1/4 inch. Is this a common problem? Does any one else have this issue on there car? Its hard to notice unless you really look for it. Is this an issue with how they were built at the factory?

VetteVet · 11-11-2011

If you took a survey with a sample size of 2 (you and I), GM would have a perfect 100% average. Mine is about the same, maybe a little more so. Same situation with mine. Frame has been verified straight and no signs of impact or damage. It seems to be pretty common with the C4's.

Jep

STEWVETTE · 11-11-2011

Thanks I thought that might be the case. If any one else has experienced this I would love to here about it. I'm curios how common it is. I'm going to take some more measurements on the frame rack just to see why the issue might exist from the factory.

sammy · 11-11-2011

something you might want to look at is your camber settings on your rear tires .that can sure cause what you see

Pete · 11-12-2011

Come to Bowling Green and check it out it's more common then you think.
Heck i seen it on low mileage ZR-1's

I was just thinking of making a spacer about 1/8" just to make it look right.

Pete

GOLDCYLON · 11-12-2011

Spring sag. Driver side. The composite fiber spring tend to break and fatigue and lean to the driver side where most of the weight is (From the driver).

Its a very common C4 issue

11-11-2011	#1
STEWVETTE Join Date: Aug 2011 Location: NOR-CAL Posts: 19	REAR END OFF CENTER I have seen online that some c4's have rear ends that appear to be off center and this might be a common problem. I have measured out my frame and all is in spec. And the rear end is centered in the frame. But with wheels and tires mounted on the car the drivers side wheel is out 1/4 inch and the passengers side is in 1/4 inch. Is this a common problem? Does any one else have this issue on there car? Its hard to notice unless you really look for it. Is this an issue with how they were built at the factory?

11-11-2011	#2
VetteVet Join Date: Jan 2009 Location: Mandeville, LA Posts: 340	Re: REAR END OFF CENTER If you took a survey with a sample size of 2 (you and I), GM would have a perfect 100% average. Mine is about the same, maybe a little more so. Same situation with mine. Frame has been verified straight and no signs of impact or damage. It seems to be pretty common with the C4's. Jep

11-11-2011	#3
STEWVETTE Join Date: Aug 2011 Location: NOR-CAL Posts: 19	Re: REAR END OFF CENTER Thanks I thought that might be the case. If any one else has experienced this I would love to here about it. I'm curios how common it is. I'm going to take some more measurements on the frame rack just to see why the issue might exist from the factory.

11-11-2011	#4
sammy Join Date: Jun 2010 Location: Lone Pine, CA Posts: 580	Re: REAR END OFF CENTER something you might want to look at is your camber settings on your rear tires .that can sure cause what you see

11-12-2011	#5
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,667	Re: REAR END OFF CENTER Come to Bowling Green and check it out it's more common then you think. Heck i seen it on low mileage ZR-1's I was just thinking of making a spacer about 1/8" just to make it look right. Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage

11-12-2011	#6
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,123	Re: REAR END OFF CENTER Spring sag. Driver side. The composite fiber spring tend to break and fatigue and lean to the driver side where most of the weight is (From the driver). Its a very common C4 issue __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

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