Need less bounce.

S

sugjavier

Member
So I just bought 2 Bilstein 4600 rear shocks (Part #: 24-024518) and had a local shop install them for $80. Looking to also replace the front shocks soon.

It definitely improved the ride (I don't feel the bumps and holes in the road that drastic anymore), but it's still kinda bouncy.

Now, before I even decided to replace the rear shocks, I did the little test where you push down on the rear bumper and see how many times it bounces before it stays still and mine was like 2.5x.

After the Bilstein shocks were installed, it's like 2x bounce.

Now my question is, is this normal? I tested other SUVs and you push down and they come right back up with no bounce. I read that the 4runner has rear sag.

Does this mean I need to replace the REAR coils? I don't really want a lift but I just want to be stable and firm. Not bouncing so much while driving on bad roads.

Any kind of suggestion is okay. I'll be fine with minimal lift I guess (around 1inch is fine) but only if that'll fix my issue.

Your help will be very much appreciated
 
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Could be there isn't enough valving in those shocks to control your springs, the 5100 series might have been better.
 
You might also want to check and make sure you aren't sitting too close to your bump stops. Look under the back of your 4runner and see how much space is between the cone shaped bump stop inside the spring and the rear end. Most older 4runners with a lot of miles on them are practically sitting on the bump stops so when you hit a dip in the road you are bouncing off the bump stops.
 
Bama_Runner said:
You might also want to check and make sure you aren't sitting too close to your bump stops. Look under the back of your 4runner and see how much space is between the cone shaped bump stop inside the spring and the rear end. Most older 4runners with a lot of miles on them are practically sitting on the bump stops so when you hit a dip in the road you are bouncing off the bump stops.
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So I can just go to a shop and have em check the bump stops? How would they readjust it? Just give me some details so I know what they'll do and describe my problem to them
 
sugjavier said:
So I can just go to a shop and have em check the bump stops? How would they readjust it? Just give me some details so I know what they'll do and describe my problem to them
Click to expand...

There's no adjustment on the rear, you would need new coils if you are really sagging in the rear.
 
kernel.panik said:
There's no adjustment on the rear, you would need new coils if you are really sagging in the rear.
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Can you link me on some really good coils that can replace the stock coils? As long as it's none-minimal lift(1inch), I'm ok with that. I want real stiff if that means less bounce and more of stable, comfy ride
 
sugjavier said:
Can you link me on some really good coils that can replace the stock coils? As long as it's none-minimal lift(1inch), I'm ok with that. I want real stiff if that means less bounce and more of stable, comfy ride
Click to expand...

If I were you I would go with a Old Man Emu (OME) 906 They work great for stock height trucks (0-1" of lift) and give a really good ride.
 
sugjavier said:
Can you link me on some really good coils that can replace the stock coils? As long as it's none-minimal lift(1inch), I'm ok with that. I want real stiff if that means less bounce and more of stable, comfy ride
Click to expand...

Stiffer springs is going to get you more bounce if you keep the same shocks.
 
OME 906s paired with the Billy HDs (the 4600s you bought) is a very very common upgrade around here. Some people say it can be stiff, but most would call it firm. I loved the ride with mine, I just wanted to go taller. Those HDs are nice shocks. My guess is your stock springs are shot. You can nab a set of 906s for +-$170 shipped. Plus, you won't have to worry about the front, the 906s match well with stock fronts.

http://wheelersoffroad.com/product/old-man-emu/old-man-emu-2906-rear-coil-set/
 
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Millerad1651 said:
OME 906s paired with the Billy HDs (the 4600s you bought) is a very very common upgrade around here. Some people say it can be stiff, but most would call it firm. I loved the ride with mine, I just wanted to go taller. Those HDs are nice shocks. My guess is your stock springs are shot. You can nab a set of 906s for +-$170 shipped. Plus, you won't have to worry about the front, the 906s match well with stock fronts.

Old Man Emu 2906 Rear Coil Set
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Ok ill probably go with OME 906. Do you know if they have to dissemble my rear bilstein shocks to install the coils when I get em? I'm just looking at the coils+labor cost here so I can save up a little bit.

I appreciate the help everyone! You guys rock.
 
I thought 906s were for a 2" lift...

If you want stock height, head over to RockAuto.com and take your pick of springs. I think all of them are under $100 for the pair.

You don't have to "unassemble" the shocks, just unmount them so the rear can flex enough to remove the old coil, it's nothing like the front setup. The coils are on the axle itself, where the shocks mount in front of the axle.
 
sugjavier said:
Ok ill probably go with OME 906. Do you know if they have to dissemble my rear bilstein shocks to install the coils when I get em? I'm just looking at the coils+labor cost here so I can save up a little bit.

I appreciate the help everyone! You guys rock.
Click to expand...

To install the rear spring, you'll need to unbolt the bottom of the shock, and take off your sway bar end links. The rears can be put on in under an hour, especially if you have a lift to use.

kernel.panik said:
I thought 906s were for a 2" lift...

If you want stock height, head over to RockAuto.com and take your pick of springs. I think all of them are under $100 for the pair.

You don't have to "unassemble" the shocks, just unmount them so the rear can flex enough to remove the old coil, it's nothing like the front setup. The coils are on the axle itself, where the shocks mount in front of the axle.
Click to expand...

When I installed mine, I got a little over 1" of total lift. It all depends on how bad your stock springs are. If they were brand new stock height springs, then adding 906s would probably net you 2" of lift. However, being as his stock springs are lower than they were when they were new, he will most likely only net 1" of lift. Make sense?
 
kernel.panik said:
I thought 906s were for a 2" lift...

If you want stock height, head over to RockAuto.com and take your pick of springs. I think all of them are under $100 for the pair.

You don't have to "unassemble" the shocks, just unmount them so the rear can flex enough to remove the old coil, it's nothing like the front setup. The coils are on the axle itself, where the shocks mount in front of the axle.
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Ok well, 2 inches is kinda a lot. Would that feel right with my stock tires (idk the size) and stock front springs/shocks and bilsteins in the rear?
 
Millerad1651 said:
To install the rear spring, you'll need to unbolt the bottom of the shock, and take off your sway bar end links. The rears can be put on in under an hour, especially if you have a lift to use.



When I installed mine, I got a little over 1" of total lift. It all depends on how bad your stock springs are. If they were brand new stock height springs, then adding 906s would probably net you 2" of lift. However, being as his stock springs are lower than they were when they were new, he will most likely only net 1" of lift. Make sense?
Click to expand...

Actually, no...sorry.

Here's how I see it:
Lets say that all measurements are from a coil spring installed on the vehicle so that compression is removed from the equation.

Brand new stock toyota coil installed on vehicle would be "X"
A 906 coil would be X+2"
His 160,000 mile coil would be roughly X-1"
Installing the 906 on his truck would net him +3" over where he sits now.

The only thing I can see that would net you only a 1" lift is that your 98 came with roughly 1" taller coils all around than his 01 and my 02.

I just don't want to see this guy install $160 coils that will give him 3 more inches when he wants a stock height and can get them for around $60.

Correct me if I'm wrong, that's just how I see it...
 
I've got 906's with Tundra 5100's and it's bouncy. I had Tokico Trekamasters prior to the 5100's. The Trekmasters were firm, not stiff, where as the 5100's feel a bit bouncy. I've gotten used to them and the ride is fine.
 
Millerad1651 said:
See my reply to his statement above. You'll be fine with 906s...

Do you have any pics of your truck?
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1432grs.jpg
 
So I got the rear coils replaced at a local shop. It's Moogs stock coils. Felt less bouncier than before I replaced it. I guess it was really the coils since it looked like I got a lift after the new install. But I guess that's the stock height :)
 
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