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Originally posted by 01SalsaXterra:
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600 lbs. is the spring rate Total Chaos reccomends for their LT kit...
And the guy running the SLR long travel said that 650 lbs. wasn't giving enough lift on his, so he was going up to 700 lb springrate coils.

Which was why I was asking what people were running on their SASed trucks too. laugh

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I don't understand what you're asking.

There is no "600" or anything close to it in the spring rates.
I think you misunderstood.
If you are running Dual spring rate coils (2) springs per coilover shock stacked, then you are probably running (2) 300lb coils, totaling 600lbs like the Calmini SAS kit suggested.

I'm looking to run a single coil spring for my coilover swap for simplicity and since I'll be running less travel, so
it will either be 600, 650, or 700 lbs. total spring rate.

So, What is the springrate you used?
That's what I'm trying to explain. The spring rates do not add.

I would certainly expect the IFS system to run a much higher spring rate because the fulcrum of the control arms is so close. On a straight axle, there isn't so much leverage on the springs, making the spring rates much lower.

I believe mine has a 300 and a 250 on each shock. The effective spring rate is probably about 270. I'd be better off with 2 300's IMO.