std vs heavy duty suspension
Thread Starter
Melting Slicks
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
std vs heavy duty suspension
I was looking at brakes on rock auto for my 92 coupe and they list them as standard or heavy duty suspension. but what do those mean?
does heavy duty suspension refer to RPO codes FX3 and Z07?
Thus standard would be the absence of these?
does heavy duty suspension refer to RPO codes FX3 and Z07?
Thus standard would be the absence of these?
Safety Car
Joined: Aug 2009
Posts: 3,752
Likes: 276
From: Melbourne, Victoria, Australia
With the brakes standard are 12 inch disc rotors, J55 is the option code for heavy duty 13'' front discs / calipers.
They were an option for standard C4's however I believe they came standard for 1995 and 1996 c4's and all ZR1.
Burning Brakes
Joined: Mar 2008
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From: Coquitlam BC
Team Owner
Joined: Dec 1999
Posts: 34,873
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
The Z07 suspension option is what was considered the "heavy duty" suspension. The FX3 Selective Ride Control was part of the Z07 package that included stiffer springs, larger sway bars and the J55 13" front rotors.
But FX3 was also available by itself with the base suspension and brakes (12" rotors).
But FX3 was also available by itself with the base suspension and brakes (12" rotors).
