Common 4th Gen Spring Rates

[KissMyWhtSS]

Manufacturer.....Model........Front (lbs/in)....Rear (lbs/in).......Ride Height Drop (in.)
OEM GM............V6 93-97...223...................95.4..................0 .00"
OEM GM...........V8 93-97....310...................110................... 0.00"
OEM GM...........V6 98-02....257...................114..................0 .00"
OEM GM...........V8 98-02....292...................114..................0 .00"
1LE GM............1LE............360.................. .130-180............0.00"
Eibach.....V6 Prokit 93-97...337...................75-135..............1.00"
Eibach.....V8 Prokit 93-97...377-600............94-160..............1.30"
Eibach.....V6 Prokit 98-02...351..................80-137..............1.40"
Eibach.....V8 Prokit 98-02...400..................80-137..............1.25"
Eibach.....Sportline............360............... ...80-137..............1.6" / 1.4"
Hotchkis...Fbody Springs....285-525...........100-140............1.00"
G2...........Super Springs....548.................180-230.............1.50"
Hyperco Hypercoils............360-580..........168-216.............1.25"
MAC........Fbody Springs.....450-515.........215-245.............1.50"
SLP...Level 1 Progressive.... 223-448........97-136...............0.75"
SLP...Level 2 Progressive....300-450........115-185 ............0.50"
BMR Fbody Springs............310-550.......145-170............1.00"
Suspension Techniques.......428.............161.............. .....1.30" / 1.70"
Edelbrock Fbody Springs....585.............120-150.............1.25"
DMS Springs LS1 98-02......325-630.......95-160..............1.30"
Strano Performance Parts...550.............150...................1.20"

[Source (http://www.angelfire.com/my/fastcar/suspension.html)]

If anyone finds the information to be incorrect, let me know.

[Tarheel'Z']

no strano's?

[CamaroGirl]

good info

[KissMyWhtSS]

no strano's?
I found the spring rates posted on ls1tech


good info
I think its sticky material, hence why I added it to the LTx Quick Reference Thread (http://ltxtech.com/forums/showthread.php?1210-LTx-Quick-Reference-Thread)


Sorry the spacing is off... its a pain to try to display tabular data. I may throw everything in a excel document and take a picture and host it on here.

[JoeliusZ28]

only thing i would like to note is that LT1 springs sit lower than 98-02 springs by about an inch, front and rear.

[KissMyWhtSS]

Manufacturer.....Model........Front (lbs/in)....Rear (lbs/in).......Ride Height Drop (in.)
SLP...Level 2 Progressive....300-450........115-185 ............0.50\\"
I called SLP to verify that their SLP #7002 (http://www.slponline.com/view_product.asp?P=70002) was the same as the Blistien level 2 and here's the numbers the sales rep gave me. He also said it is the same as the Blistien level 2 package. They sell the shocks/springs individually as well.
I think he said 285-485 for the front and I forgot the rear but they were off a little as well.

[MavsFORMULA]

Nice post. I was coming up with spring rates a couple weeks ago and didn't find that many...