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09-08-2022
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#1 |
 
Join Date: Jul 2015
Location: Ypsilanti, MI
Posts: 114
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Wheel Compatibility with GS Brakes
Thinking about wheels for a '91.
Currently I have reproduction A-molds with non-ZR-1 offsets in the rear. Front brakes have been changed to Grand Sport calipers (before I bought the car so I'm short on details). If I want to go back to a '90 or '91 style wheel do I have to worry about compatibility with the GS Brakes? Or are they close enough to stock?
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1991 ZR-1 #1438 Black/Black & Red |
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09-08-2022
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#2 |
  
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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Re: Wheel Compatibility with GS Brakes
gs calipers are j55s that are just painted black
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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09-08-2022
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#3 |
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Join Date: Jul 2015
Location: Ypsilanti, MI
Posts: 114
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Re: Wheel Compatibility with GS Brakes
Well that answers that. D'oh! Thanks!
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1991 ZR-1 #1438 Black/Black & Red |
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09-09-2022
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#4 | |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,152
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Re: Wheel Compatibility with GS Brakes
Quote:
 Fun fact the 96 Collector editions also were sporting the front "GS" calipers as well.
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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 Last edited by GOLDCYLON; 09-09-2022 at 01:44 AM. |
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09-09-2022
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#5 |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Wheel Compatibility with GS Brakes
While they are basically J55's, the beefier castings make them marginally stiffer than a standard J55 and better looking too! Luv mine.
H 
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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09-13-2022
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#6 |
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Join Date: Jun 2005
Location: CenCoast California
Posts: 899
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Re: Wheel Compatibility with GS Brakes
I had '96 GS fronts on "Barney,: the C4 ZR1 I once, owned, for probably 2/3rds of the 20 years I had it.
The GS fronts are modestly stiffer across the "bridge" than were the standard J55 fronts. That makes for less caliper spreading, more force applied to the brake disc and a marginally harder pedal during aggressive braking. The GS rears are the same as all J55 rear calipers except they were black powder coated. Any wheel that works with a standard J55 front will work with GS fronts.
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Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878 Last edited by Hib Halverson; 09-13-2022 at 09:52 PM. |
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