MM49 wrote:
It looks like you have your SES set to high. Do you have the 1" rubber spacer in?
MM49
SES is not supposed to engage until there is a load. Installation instructions specify a 1" gap (when unloaded) between the axle and Timbren spring. That is what I have. If I put spacers in, there would be no gap, and SES would be engaged all of the time.
Part of the confusion may be the rear spring blocks have been changed.
This truck came from factory with snow plow package. Due to heavier front suspension, it looked like it was squatting, with no load, whatsoever. On level ground, rear fender wells were 1,5 inches lower than the front. The fix for squatting appearance was, remove the 2" F250 spring blocks, and install 4" F350 spring blocks. Now, on level ground, rear fender wells sit .5 inch higher than the front. Could be why I have no room for SES spacers.