C4 front susp

[jeff s]

Does anyone have the over all track width of the 84-88 C4 corvette front suspension? outside of tire to outside of tire or hub to hub width. Also what length coilover would be needed? I believe the frame rails would need to be about 27.5 " inside width for the C4 crossmember to fit in, is that right?
Thanks

[Tiger]

Jeff,
I measured it to be 28" a while back, but I'm not sure how precise that was.
I have the crossmember in the shop, so if you need it excactly I'll get it for you.

as for the hub to hub width I cant tell you before I get my suspension parts back from Norway, that is if I dont have it written down somewhere in the shop.

When you get to the coilovers let me know what you choose, as I havent ordered yet.
Standard 84/88 C4 are 15" ext and 11 1/2" com = 3 1/2" stroke so I thought about the single adjustable koni's which are 15 1/2" extended and 10 3/4" compressed = 4 3/4" stroke.

I'd use the same ones in the rear where the std C4 shocks are 14 1/2" ext and 9 3/4" comp.

ciao
André

[Steve Chryssos]

Did a basic search on Yahoo. Lots 'o hits on data. Here's one:

http://www.idavette.net/facts/87.htm

And the answer is 59.6"

Seems kinda narrow so I checked the front track on my 68 with C4 suspension: Roughly 69" with inside width of my frame rails at 33.375". UCA cross-shafts are located inboard of frame rails

[jeff s]

Thanks,
The track as listed is center of tire to center of tire right?
Anyone with Hub to hub?

[Salt Racer]

84-87 rims have +38mm offset IIRC. Hub face width equals track width + offset x 2, assuming track width was measured at zero camber.

Assuming all numbers posted (including mine) are correct, hub face width is...
59.7 + (+38 / 25.4) x 2 = 62.69"

BTW, why 84-87? I'd look into 88 & up if there's a choice.

[ProdigyCustoms]

I assume you all ready know if you use the factory K member (crossmemeber), you will have to set the engine back under the dash?