A heavier spring is possible, but you may have to buy separately unless Eibach decides to package with a heavier spring for a PB with a different part number. These use a Beehive style spring, but different spring rates are available. We ended up having to drop 100 lbs in rate from what they...
They didn't survive. We literally blew up the fronts, driving them way past there limits. They maybe had 500 miles.
2.5's have been pretty awesome in the rough stuff. Literally soaking up the bumps.
I really can't yet, because we're still playing with spring rates and possibly valving. I don't want to give out one impression and then be different after. Should have some more clarity in a few weeks I can share.
The Eibach 2?
The Eibach 2.5 (Stage 3) will not be out until end of the year but will be announced officially at SEMA this year.
I can't give details yet on them, but they are currently on my truck right now doing some real world testing.
Been running these KO3's for about a year now, and they have been great. I have 315/70R17's which at the time only came in a F load. Which sounds crazy, but they are actually pretty comfortable.
Eibach 2.5 (Stage 3) will be out by end of year. They are wrapping up testing, and will be in production soon.
8112 DSA+ will probably not be until Spring 2026.
Why do you have King coils on your Fox Coilovers?
Regardless, you Fox would have come with a Eibach spring (they also make Kings Springs) Eibach makes every spring under the sun. You have to have a spring that fits the lower spring seat and the top mount. Fox does like to use a top isolator...