C5 6 speed - ZR-1 Net Registry Forums

lbszr · 08-16-2011

I just test drove a C5 for a daily driver. It's high mileage, the transmission starts to sound like a truck transmission, not a whine, in 4th while cruising, 5th is louder and 6th is louder than 5th. While coasting or decelerating, the sound is gone.

Does this sound normal, or should they be quiet like the 6 speed in the C4's?

Thanks for any input.

mike100 · 08-16-2011

I think the diff (ring&pinion) has a lot of wear. The whine seems to get louder with vehicle speed and load...unless you are saying that it is still louder in 6th at 45 mph than 5th at at 70 mph.

coast and load sound is gear mesh of the R&P. The C5 diff carried to the C6 for the first year and was subsequently upgraded due to the 6 liter engine and high failure rate.

GOLDCYLON · 08-16-2011

I think Mike is right

lbszr · 08-16-2011

It seems the frequency of the noise changes with the gear selected and the sound can be felt through the shifter also, I would rather deal with diff problem than a trans though.

I think I'll let it go. It has enough other issues, I don't feel like dealing with the rearend also.

Oh well........it does have 120000 miles.

FU · 08-16-2011

120K on an LS1 it's just getting broken in. I agree pass because that car has a trans or diff problem.

IMO.....C5's will go down as the most reliable vette made as of now.

95ZR1 · 10-23-2011

My '98 was the worst car I ever owned. Maybe the later C5s were better.

USAFPILOT · 04-20-2012

I had a 98 as well...the seats were rocking back and forth because something that held them steady crumbled to pieced in the GA heat. I had every seal in the transmit ion replaced for major leakage, and to top it off it had a problem with running into parking garage walls with a woman behind the wheel. No more 98's. Weak *** 345HP to. 99's had 350.

Kevin · 04-20-2012

wait, the c4 6 speed is quite?

GOLDCYLON · 04-25-2012

Quote:

Originally Posted by Kevin

wait, the c4 6 speed is quite?

It is if its a Bill Boudreau ZF. Stock hell no it whines complains and moans.

rhipsher · 05-07-2012

Mines quiet. And it aint no Bill B. Built ZF for sure. Bills are bad azz though. The only noise I here is a little gear noise from the Fidanza and thats all.

08-16-2011	#1
lbszr Join Date: Nov 2006 Location: dayton,ohio Posts: 425	C5 6 speed I just test drove a C5 for a daily driver. It's high mileage, the transmission starts to sound like a truck transmission, not a whine, in 4th while cruising, 5th is louder and 6th is louder than 5th. While coasting or decelerating, the sound is gone. Does this sound normal, or should they be quiet like the 6 speed in the C4's? Thanks for any input. __________________ [FONT=Comic Sans MS][COLOR=red]"I wanna go fast!!"[/COLOR][/FONT] [FONT=Comic Sans MS][COLOR=#ff0000]-- Ricky Bobby[/COLOR][/FONT]

08-16-2011	#2
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: C5 6 speed I think the diff (ring&pinion) has a lot of wear. The whine seems to get louder with vehicle speed and load...unless you are saying that it is still louder in 6th at 45 mph than 5th at at 70 mph. coast and load sound is gear mesh of the R&P. The C5 diff carried to the C6 for the first year and was subsequently upgraded due to the 6 liter engine and high failure rate.

08-16-2011	#3
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	Re: C5 6 speed I think Mike is right __________________ 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

08-16-2011	#4
lbszr Join Date: Nov 2006 Location: dayton,ohio Posts: 425	Re: C5 6 speed It seems the frequency of the noise changes with the gear selected and the sound can be felt through the shifter also, I would rather deal with diff problem than a trans though. I think I'll let it go. It has enough other issues, I don't feel like dealing with the rearend also. Oh well........it does have 120000 miles. __________________ [FONT=Comic Sans MS][COLOR=red]"I wanna go fast!!"[/COLOR][/FONT] [FONT=Comic Sans MS][COLOR=#ff0000]-- Ricky Bobby[/COLOR][/FONT]

08-16-2011	#5
FU Join Date: Mar 2004 Location: Found Member Posts: 4,346	Re: C5 6 speed 120K on an LS1 it's just getting broken in. I agree pass because that car has a trans or diff problem. IMO.....C5's will go down as the most reliable vette made as of now. __________________ Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237

10-23-2011	#6
95ZR1 Join Date: Jul 2005 Location: Marco Island, FL Posts: 194	Re: C5 6 speed My '98 was the worst car I ever owned. Maybe the later C5s were better.

04-20-2012	#7
USAFPILOT Join Date: Aug 2007 Location: Spring TX Posts: 1,348	Re: C5 6 speed I had a 98 as well...the seats were rocking back and forth because something that held them steady crumbled to pieced in the GA heat. I had every seal in the transmit ion replaced for major leakage, and to top it off it had a problem with running into parking garage walls with a woman behind the wheel. No more 98's. Weak *** 345HP to. 99's had 350. __________________ 1994 #293 ZR-1 Stainless Works Long Tube Headers, B&B catback w/ X-Pipe, 18" Shelby Series One Wheels, SLP CAI.

04-20-2012	#8
Kevin Join Date: Jun 2005 Location: pittsburgh Posts: 4,633	Re: C5 6 speed wait, the c4 6 speed is quite? __________________ It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B"

05-07-2012	#10
rhipsher Join Date: Aug 2008 Location: Houston 90 Red ZR-1 Posts: 2,320	Re: C5 6 speed Mines quiet. And it aint no Bill B. Built ZF for sure. Bills are bad azz though. The only noise I here is a little gear noise from the Fidanza and thats all.