285/70/17 ridge grappler tire pressure...lift woes and rough ride..

Based on what you saying it sounds like your shock valving isn't matched to your vehicle weight and/or your spring rates.

I've got toytech boss springs and shocks and have run both the standard rear Superflex and the HD.

Standard set up is plush but firm. Loaded for camping slight sag in the rear. Not anything harsh about it at all.

Added HD rear springs when I added on extra weight. Both set ups I can plow thru speed bumps and it eats them up with out upsetting the chassis. There isn't a harsh aspect to it at all.

Your either bottoming out or the rebound on the shock is not able to slow down the return stroke (bouncing). Put a dab of grease on your bump stop find a speed bump and hit it at 25. You'll know your bottoming out if you see grease transferred to the plate.

The other thought is the shock valving is not slowing down the rebound as quickly as it should, hence a harsh bounce back.

I would set your tire PSI to proper rates and would experiment with your shock settings. Not sure if you have compression and rebound clickers, but I would try out different settings.

I see a lot of moto guys run their stuff too soft and the shock rides low in the stroke, getting into the harsher part of the travel, Versus a stiffer setting which seems counter-intuitive. But a stiffer setting will put the shock into the better performing part of the stroke, i.e ability to slow and control shock shaft travel speed. Experiment a bit.

If all brand new then you need a few miles to settle in.

Good luck.
 
Based on what you saying it sounds like your shock valving isn't matched to your vehicle weight and/or your spring rates.

I've got toytech boss springs and shocks and have run both the standard rear Superflex and the HD.

Standard set up is plush but firm. Loaded for camping slight sag in the rear. Not anything harsh about it at all.

Added HD rear springs when I added on extra weight. Both set ups I can plow thru speed bumps and it eats them up with out upsetting the chassis. There isn't a harsh aspect to it at all.

Your either bottoming out or the rebound on the shock is not able to slow down the return stroke (bouncing). Put a dab of grease on your bump stop find a speed bump and hit it at 25. You'll know your bottoming out if you see grease transferred to the plate.

The other thought is the shock valving is not slowing down the rebound as quickly as it should, hence a harsh bounce back.

I would set your tire PSI to proper rates and would experiment with your shock settings. Not sure if you have compression and rebound clickers, but I would try out different settings.

I see a lot of moto guys run their stuff too soft and the shock rides low in the stroke, getting into the harsher part of the travel, Versus a stiffer setting which seems counter-intuitive. But a stiffer setting will put the shock into the better performing part of the stroke, i.e ability to slow and control shock shaft travel speed. Experiment a bit.

If all brand new then you need a few miles to settle in.

Good luck.

Thanks. I'm going to mess with the adjusters tonight. Will put them at 50% firm vs all the way soft.

It's been on for 5 days. Has about 300 miles on it. Probably needs another week or so to be settled.
 
Just a bit of info on your tire pressures.
Air your tires to where they are in your proper load range for your T4R depending on what load rating they are. (EX: "C", "D", "E")

By doing this, your suspension is doing what it is designed to do.
Sounds like you were airing down to compensate for your suspension woes....
 
Thanks. I'm going to mess with the adjusters tonight. Will put them at 50% firm vs all the way soft.

It's been on for 5 days. Has about 300 miles on it. Probably needs another week or so to be settled.

For reference, mine took about 1000 miles to really settle in. My “stiffness” comes from the tires more than the shocks. Yay E-rated tires :whoo:
 
Can you see any numbers on the coilover spring? Just to verify it is indeed a 550# spring. Also, if you want the smoothest ride, remove the front sway bar. This will let the front suspension truly be independent and it really smooths out the ride.
 
I swapped out the rear springs to something less stiff and lowered the front end quite a bit...also tossed a sandbag in the back. All good now
 
I swapped out the rear springs to something less stiff and lowered the front end quite a bit...also tossed a sandbag in the back. All good now

So it sounds like you got the ride smoothed out? What springs did you go with? How are the King's holding up?
 

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