So I have the 4600 on my stock truck height truck and I think they suck. It’s a pretty rough ride. I am currently working to find a different riding shock. I understand this is an older style 2500 and that it’s not going to ride like a caddy or 1500 or whatever but I am sure there is a shock out there that wont knock my teeth around.
Tire design (off pavement or off road worsens all else in ride)
Tire Pressure (usually too high by owners)
Shocks (age) as none are much good past 40k (gas charge dissipation).
Shock design (high pressure gas or mainly hydraulic)
Body Bushings (age)
Spring Eye & shackle bushings
Motor & Trans mounts
Seat cushion needs replacement.
Add Purple brand Ultimate Cushion
Noise as that equates in people’s minds with harsher ride (door & window seals, etc)
Vibration as it accentuates the problem (CENTRAMATICS or CounterAct Balance beads); steer column bushings.
Need 500# in bed (minimum; permanent) for longest tire life, max fuel mileage, and to help tamp rear springs.
With shocks you’ll get what you pay for. Near to or just past $100/ea is quality entry level.
OEM or the KONI linked above is closest to good life & good ride at start level.
The 4600 is stiffer in compression.
— Scaled weight tire pressure minimum, tire vibration controlled, 500-lb bed weight, new seat cushion, bushings/mounts R&R,
cab noise reduction are all ahead of complaining about shocks in ride quality.
The last part is:
slow down. There’s plenty of places I have to move slowly as heavy pickup, LWB, and motions-induced just mean I can’t run along thru an old parking lot, or graveled staging yard (etc). I’m typically at 4,250-lb FF/RR per axle using 4600s.
Get the emotions in order.
The job of the shock is dampening spring motion.
To keep the tire clamped to the road surface.
— That’s important for all vehicles, but doubly-so for rollover-prone pickup trucks. Cheap (soft) shocks will let you down when it matters (at speed and needing to do something
NOW).
Start:
1). What are the individual scale axle weights for your truck with daily load?
2). Get the tires set to spec according to those axle loads:
https://www.toyotires.com/tires-101/tire-load-and-inflation-tables/
3). If you’ve 40k or so on the 4600s, do the rest.
Then decide on what design for new.
.