" From: farna@xxxxxxx " " I included Javelin and AMX rates just in case you want to mix and " match springs. As far as I know the SC/Rambler used the optional " heavy spring rates, which were the same for the AMX. Javelin V-8 " heavy springs were a bit stiffer. Since the 4.0L is a little lighter " than an old 232, at least 40 pouinds lighter, I'd try the light " (standard) V-8 wagon springs, or V-8 wagon W/AC at the most. I think " over 100#/inch would be a bit on the stiff side, and it may sit a " little higher since you should have no more than 800# on each spring. " Shorten to about 9.75" to retain stock height, or maybe 9.50" " (assuming all other stock specs, like loaded hgt. weight). " " 1969 American Front Spring Rates " Engine Body Spring Wire Dia. Loaded Hgt. Rate Loaded " Six W/O AC, All, Light LEFT 0.471" 9.84"@830# 80#/inch " RIGHT 0.471" 9.84"@800# 80#/inch " All Models, Heavy L&R 0.505" 9.84"@850# 100#/inch " All Models W/AC L&R 0.496" 9.84"@850# 93#/inch " " V-8 Sedan/HT, Light LEFT 0.496" 9.84"@850# 93#/inch " RIGHT 0.496" 9.84"@890# 93#/inch " Wagon, Light L&R 0.496" 9.84"@890# 93#/inch " All Models, Heavy L&R 0.513" 9.84"@935# 115#/inch " Sedan/HT W/AC LEFT 0.496" 9.84"@890# 93#/inch " RIGHT 0.513" 9.84"@935# 115#/inch " Wagon W/AC L&R 0.505" 9.84"@935# 100#/inch " " 1969 Javelin Front Spring Rates " Six W/O AC, Light LEFT 0.496" 9.84"@850# 93#/inch " RIGHT 0.496" 9.84"@800# 83#/inch " W/O AC, Heavy L&R 0.505" 9.84"@850# 100#/inch " W/AC LEFT 0.496" 9.84"@890# 93#/inch " RIGHT 0.496" 9.84"@850# 93#/inch " " V-8 W/O AC, Light L&R 0.505" 9.84"@975# 100#/inch " W/O AC, Heavy L&R 0.513" 9.84"@975# 115#/inch " W/AC L&R 0.513" 9.84"@1010# 115#/inch " " 1969 AMX Front Spring Rates " V-8 W/O AC, Light L&R 0.505" 9.84"@850# 100#/inch " W/O AC, Heavy L&R 0.513" 9.84"@935# 115#/inch " W/AC L&R 0.513" 9.84"@1010# 115#/inch " " -- " Frank Swygert here's some more info for comparison... 1968 American and Javelin Front Spring Rates Engine Body Spring Wire Dia. Loaded Hgt. Rate Loaded Six W/O AC, All, Light LEFT 0.471" 9.84"@800# 80#/inch RIGHT 0.471" 9.84"@765# 80#/inch W/AC, All, Light L&R 0.471" 9.84"@830# 80#/inch All Models, Heavy L&R 0.490" 9.84"@825# 100#/inch V-8 Sedan/HT/Jav, Light LEFT 0.496" 9.84"@850# 93#/inch RIGHT 0.496" 9.84"@890# 93#/inch Wagon, Light L&R 0.496" 9.84"@890# 93#/inch Sedan/HT/Jav W/AC LEFT 0.496" 9.84"@890# 93#/inch RIGHT 0.505" 9.84"@935# 100#/inch Wagon W/AC L&R 0.505" 9.84"@935# 100#/inch Handling Pkg W/AC L&R 0.513" 9.84"@935# 115#/inch -- 1966 American Front Spring Rates Engine Body Spring Wire Dia. Loaded Hgt. Rate Loaded Six Except Convertible LEFT 0.471" 9.84"@800# 80#/inch RIGHT 0.471" 9.84"@765# 80#/inch Convertible LEFT 0.471" 9.84"@830# 80#/inch RIGHT 0.471" 9.84"@800# 80#/inch All Models, Heavy L&R 0.490" 9.84"@825# 100#/inch V-8 Sedan/HT, Light LEFT 0.496" 9.84"@850# 93#/inch RIGHT 0.496" 9.84"@890# 93#/inch Convertible, Light LEFT 0.496" 9.84"@850# 93#/inch RIGHT 0.496" 9.84"@890# 93#/inch Wagon, Light L&R 0.496" 9.84"@890# 93#/inch Sedan/HT W/AC LEFT 0.496" 9.84"@890# 93#/inch RIGHT 0.505" 9.84"@935# 100#/inch Convert/Wagon W/AC L&R 0.505" 9.84"@935# 100#/inch Handling Pkg L&R 0.513" 9.84"@935# 115#/inch -- interesting to see subtle changes in essentially the same cars... ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought