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C4 No-Flex Frame Stiffener Bar System

Forum: C4 Electrical, Body and Interior

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C4 No-Flex Frame Stiffener Bar System

Posted: 2/9/14 1:13pmMessage 1 of 4
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Has anyone installed this system? I read that it was developed by Gordon Killebrew then marketed and sold through Vette2Vette. Looks interesting, but the 499.00 price is steep to try it...wanted to know if somebody here has already done the modification.
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Re: C4 No-Flex Frame Stiffener Bar System

Posted: 2/10/14 4:04pmMessage 2 of 4
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Garland, TX - USA
Joined: 1/1/2013
Posts: 37
Vette(s): I have a 1991 Artic White, Red Interior convertible, 30,000 miles on it, & a 1993 40th Anniversary with 50,000 miles on it
   The C4 was "Cutting Edge " when it left the factory in Bowling Green. I can't imagine needing a frame stiffener on either one of mine. And I am a tight wad when it comes to cash. When this guy developed this stiffener, was he daily driving his C4 or racing it?.................
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Re: C4 No-Flex Frame Stiffener Bar System

Posted: 2/10/14 8:38pmMessage 3 of 4
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22714
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Looks like a fancy "upgraded" factory "X" brace, originally used on the convertibles.You can prolly buy one of the GM braces for less than $500, and it bolts right on. The factory piece WILL inhibit access to the trans pan, and driveshaft, but it isn't that hard to install/remove.

vette2vette frame stiffener

Joel Adams
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Re: C4 No-Flex Frame Stiffener Bar System

Posted: 2/11/14 11:46amMessage 4 of 4
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Frankenmuth, MI - USA
Joined: 1/6/2013
Posts: 14
Vette(s): 1991 Steel Blue ZR-1 1991 Callaway Aerobody ZR-1 1993 Callaway 40th Anniv ZR-1 1998 Pacecar 2003 50th Anniversary Pacecar
This is designed for racing. A stock C4 does not need the frame stiffened. 
However with that being said, there is currently about an inch of flex when you lift the car without the top being installed.

Robert J. DeMarco

1998 Pacecar Original Owner Stock
1993 Callaway Ruby Red ZR-1 #219
1991 Callaway Aerobody ZR-1 #1026 Purple Pearl Mist 
1991 Shinoda Aerobody ZR-1 #1696 (Under Construction)
2003 50th Anniversary Roadster Pacecar 
1990 LPE ZR-1

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