jsparhwk
NAXJA Forum User
- Location
- Richmond, VA
So I’ve done some reading on spring rates and gathered this information….
sorry I should have been better about recording sources
but some of its from good ol
some from other forums…
So here are some of the options I’m looking at,
stock springs are 180lbs per inch (for comparison)
Iron Rock Offroad 3” 200lbs per inch
Rubicon Express 1300 (Cherokee) 3.5” 240lbs per inch
Rubicon Express 1341 (Grand Cherokee) 3.5” 150lbs per inch
Rustys 3” 150lbs per inch
Rustys 3” HD 180lbs per inch
BDS 3” 240lbs per inch
So what I’m asking is has anyone ran any of these and ended up swapping them months later due to ride quality/performance?
Before I looked up these numbers I was going to go Rubicon Express, but after seeing how high the spring rate is I’m rethinking...
sorry I should have been better about recording sources
but some of its from good ol

So here are some of the options I’m looking at,
stock springs are 180lbs per inch (for comparison)
Iron Rock Offroad 3” 200lbs per inch
Rubicon Express 1300 (Cherokee) 3.5” 240lbs per inch
Rubicon Express 1341 (Grand Cherokee) 3.5” 150lbs per inch
Rustys 3” 150lbs per inch
Rustys 3” HD 180lbs per inch
BDS 3” 240lbs per inch
So what I’m asking is has anyone ran any of these and ended up swapping them months later due to ride quality/performance?
Before I looked up these numbers I was going to go Rubicon Express, but after seeing how high the spring rate is I’m rethinking...