CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: DT on March 04, 2012, 04:31:51 AM

Title: "HO" coil springs
Post by: DT on March 04, 2012, 04:31:51 AM: Anyone know what application "HO" front coil springs are for??? I just removed my front springs on my 69 BB and the tag appears to be "HO". Any idea???
Title: Re: "HO" coil springs
Post by: 1968RSZ28 on March 04, 2012, 04:52:39 AM: Quote from: DT on March 04, 2012, 04:31:51 AM
Anyone know what application "HO" front coil springs are for??? I just removed my front springs on my 69 BB and the tag appears to be "HO". Any idea???

DT,

Any chance the tags are "HG"?

http://www.camaros.org/images/pages/chassis/69_spring_ID_PA34.jpg

http://www.camaros.org/images/pages/chassis/69_spring_chart.pdf

Paul
Title: Re: "HO" coil springs
Post by: DT on March 04, 2012, 05:06:36 AM: I looked hard again and think they are actually "HQ". GM# 3955724. Having a tough time finding info on this # 3955724 with "HQ" tags. Would love to match the spring rate and ride height.
http://www.heartbeatcitycamaro.com/store/product/17129/Camaro-Coil-spring-decals-HQ-3955724-69/
Title: Re: "HO" coil springs
Post by: Stingr69 on March 04, 2012, 09:05:25 AM: "HQ"'s were used on ZL-1's. I actually have a set that I took off the front of my car during the resto.

http://www.camaros.org/copo.shtml#adapt

(http://i44.tinypic.com/2w357gx.jpg)

-Mark.
Title: Re: "HO" coil springs
Post by: DT on March 04, 2012, 02:28:44 PM: I believe the "HQ" was also used on SS396 with 325hp or 350hp. I wish someone knew of a very close replacement. Moog 638 and 6312 are not really close as far as the spring rates go. I read the "HQ" springs are 1830 lbs (LOAD) and 345 lbs/inch (RATE).
Title: Re: "HO" coil springs
Post by: Stingr69 on March 04, 2012, 09:14:31 PM: Possibly they were used there as well but who knows.

I have a single fuel line so I doubt my car was one of those. Too early for ZL-1, not on the list, DG3 on the rear seat bulkhead. Original chabered exhaust car. Hard to say what it was originally with any certainty. The possibilities are mind boggling. I had to just believe the DG-3 crayon mark and run with it. I will keep the car and the springs indefinately just in case better info comes along some day.

-Mark.
Title: Re: "HO" coil springs
Post by: DT on March 06, 2012, 02:01:38 PM: Its also strange that the "HQ" springs are NOT listed on the Camaro spring charts??? Can anyone elaborate on this ???