I was going to start a new thread for this, but probably not worth it. Just wanted to get the info out there somewhere on a recent thread.
The history and woes playing with the suspension on my truck...
Front:
- I installed top mount 2" spacers on the front coils a few months back. The truck still rode horribly soft and that affected the front end feedback while towing the boat.
- I removed the 2" spacers 2 weeks ago and installed the Bilstein 5100s, maxed out at 2.7" of lift (or whatever that number is for the highest ring)
- Dramatic improvement in ride quality which I believe is due to the preloading of the struts. Better steering while towing, etc. Very easy install too.
Rear:
- These trucks are famous for squatting the rear end with anything more than 6 ounces of weight on them.
- I added the "in spring" airbags 6 months ago hoping these would help, used them in the past successfully, but they did not help this truck. I think the 5th gen springs are just lighter than my 4th gen springs.
- I ripped out the airbags due to horrible performance while towing. It didn't help the squat much and walked all over the road while towing.
- I installed these:
https://www.stengelbros.net/350-905XHD-Dayton-Maxx-Heavy-Duty-Coil-Springs_p_41403.html
-- NIGHT AND DAY IMPROVEMENT
-- 70% increase in load are the ones I bought. Love them. They have a 30% increase available as well which would probably be sufficient.
-- Tows great now. No bucking when you go over bumps while towing, no saggy rear end feeling, no sway issues
-- 2.5-3" of lift in the rear so it has a good stance. With the boat hooked up (~500 lb tongue weight) it only sags the rear about 1.5" which is perfectly level. (a little rake without the boat, level with the boat or towing my big trailer)
-- Only cost ~$220 delivered. A much better solution than air bags or spacers in my opinion.
- Bilstein rear shocks (0-2" lift) are next.