c4 frame specs.

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Jul 14, 2008 | 12:07 PM

obosse

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2nd Gear

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c4 frame specs.

I am looking for a factory drawing of the 86 c4 frame. One with all of the dementions .The type that a frame shop would use to check for being straight. Thanks

Jul 14, 2008 | 12:15 PM

zr1fred

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From: Phoenix Arizona

ANY good frame shop has the dimensions, you should be able to get them to give you a copy.

Jul 14, 2008 | 12:52 PM

WVZR-1

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The "frame dimension specification" drawings that collision shops use are quite large and I don't know of anyone that would "give" them away! Expensive "subscription service"!
The later "measuring systems" that use "targets" don't have information that would be of much use to most users! They're buried in "software"!
The FSM has dimensions that are quite comprehensive and get the diagnostic job done!

Jul 14, 2008 | 02:24 PM

BrianCunningham

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From: Boston, Dallas, Detroit, SoCal, back to Boston MA

The FSM is a great start, I've also collected some other drawings trying to put together my own CAD model

What is it your trying to do?

Jul 14, 2008 | 09:28 PM

obosse

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c4 frame

[I am trying to design a front frame section to fit onto a 57 chevy.I plan on using a 86 c4 front suspension. I need the drawings so I can figure the frame height. thanks for any help

Jul 15, 2008 | 07:52 AM

WVZR-1

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Quote:

Originally Posted by obosse

[I am trying to design a front frame section to fit onto a 57 chevy.I plan on using a 86 c4 front suspension. I need the drawings so I can figure the frame height. thanks for any help

There are several "builders" that offer a package that will accomodate your exact needs. I'm not talking about an entire "tubular" frame but just the required front section to retain the front perimeter frame etc. BUT if it were a serious project I would consider a "tubular" frame package from one of the builders out there that will accomodate a "later drivetrain and suspension" package. Here's a builder: http://www.sriiimotorsports.com/

Here's a project that used one of their creations: http://www.vettetech.com/ and just click on the link to the left titled
"Frankensport"

I thought at one time SRIII offered a '55-'57 package.

Here's one that might offer just the required to mount the C4 stuff on your frame rails, which sounds like what you want to accomplish anyway!

http://www.progressiveautomotive.com/55CJ.htm

You mention '86 C4 suspension. I believe if I wanted to use C4 suspension I'd lean towards '89 + MY suspension. More brake options and considerably more readily available for spare parts if required.

Last edited by WVZR-1; Jul 15, 2008 at 07:55 AM.

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