Replacing stock suspension. KYB

[Christopher_t4r]

First and foremost I want to let everyone know how much I've searched and found great information, but it's not covering exactly what I'm looking for. Sorry if it irks you.

Situation: 2000 4Runner limited 4x4 on stock suspension with rear sag.
Objective: to eliminate rear sag, changing shock and spring
Feel: near stock or pretty close nothing crazy
Lift: only as much as new springs/coils will give
Shocks:KYB monomax
Springs: looking to get the 99 springs

I'm looking to go 99 springs all around with kyb monomax shocks, will this level out my ride?

I have learned that the 99 springs are the tallest, this setup will work with my 2000 4Runner correct?
Is there anything else I should do? Or will this solve the problem. Thanks

Chris

 

[Chuckles89]

I have the 99 springs and KYB monomax shocks. They have a great ride! On my truck, the rear springs sagged right from when I put them on. I put AirLift 1000 air bags in the back to fix it. If I were to do it again, I would go Old Man Emu springs with KYB shocks.

If you just want to fix the sag, then just get the rear 99s and leave the front alone.

 

[gamefreakgc]

I agree with the 99's unless you are buying brand new (I can't remember if you said yours were used or new Chuckles). If they are used, they will sag, just like any other used part. Just like you wouldn't put a shock with 200k miles on your rig, think in the same terms with the coils. The exception to this would be Land Cruiser coils since they are considerably taller than our 4Runner ones that it evens out and still lifts.

The sag is caused by worn-out coils. So if your front end dips or the rear end sags, or both, the coils are what needs to be replaced. If you have a lack of shock absorbtion (hence the name) then your shocks will need to be replaced. I currently have the KYB Gas-a-justs and got all 4 for about $160 off ebay brand new. I'm very happy with them, they are considerably cheaper than the Monomax ones. I replaced the front coils with a slightly too stiff aftermarket parts, but I can live with it. Otherwise they are decent enough on the road and awesome off-road.

 

[Chuckles89]

My springs and shocks are new...

 

[cajunboy]

so what is a better option than the 99 coil springs? i also want the factory look but with better spring and shock. thanks

 

[AZ4Running]

The 99 talls are pretty much your best bet for close to stock height and ride, they will get rid of that rear sag. Just a tip get some new ones from the dealer, old used ones will have some sag as well and may not even level out the truck very much. For shocks the KYB GasAJust are really nice for stock replacements. I have them on right now and they ride really nice on and off road. Pretty sure the Mono Max are stiffer, just a fyi.

 

[SilverRidgeRunner1]

I have a curious question are the spring rockauto sales for the 99 are they the actual correct 99 talls or do u pretty much have to go factory on the springs. I have a 99 no worries here but was just wondering.

 

[gamefreakgc]

My springs and shocks are new...

Oh I didn't mean to imply that your shocks were old, I re-read the post and it made it seem that way. I know your setup is good.

The 99's on Rockauto are the same parts as the rest of the years, they will not be taller. It's only the OEM 99's that are taller.

 

[Christopher_t4r]

Thanks for the replies.

Update; I have purchased a set of 4 kyb monomax. I want to replace both sets of coils(front and rear) and I would like to fix the rear sag. If I get the oem 99 coils all around, will I have the sag?

 

[RunnerPDX]

I'd seriously consider something besides stock 99's. My 99 had rear sag, and I replaced with KYB's and Old Man Emu springs. 881 in the front, 906 in the rear. Damn near stock for height... but level. More importantly, it handles way better in the turns... especially under load.

My biggest gripe with my stock suspension was when loaded down going camping, my runner was just plain pathetic in the turns. Way to much body roll... If you plan on hauling anything with your rig, I'd upgrade.

 

[gamefreakgc]

If you replace the sway bar bushing that takes out a TON of body roll. I did it with the ones from Energy Suspension and it make a huge difference! But coils help a lot too.

Basically my 4Runner handles like a go cart now. Which is great, since I hope to add some serious HP in the next year or so.

 

[RunnerPDX]

I did the same thing... replaced all the bushings on the rack and sway bar... those bushings from Energy Suspension helped a ton.

The OME springs added even more stability. Night and day difference from stock... but my stock springs were pretty worn out so anything new would have been better.

If you're not hauling much with it, stock is probably the way to go...because heavier load bearing springs ride rougher without load. But you'll appreciate them when you've got 4 people in the rig, all the gear, and hit a corner doing 70mph...

 

[Chuckles89]

Here are my pictures of the 99s before I got the airbags. They ride great and have plenty of articulation though. You'll love the KYBs!











Before anyone tells me that the rear fender opening is lower than the front, I know that. The window trim and roof line had negative rake in my level concrete basement floor.

 

[JayRolla]

I did the same thing... replaced all the bushings on the rack and sway bar... those bushings from Energy Suspension helped a ton.

The OME springs added even more stability. Night and day difference from stock... but my stock springs were pretty worn out so anything new would have been better.

If you're not hauling much with it, stock is probably the way to go...because heavier load bearing springs ride rougher without load. But you'll appreciate them when you've got 4 people in the rig, all the gear, and hit a corner doing 70mph...

If you go new 99 coils then they handle great. Its once any suspension hits around 100k miles they need replaced. 99 coils will give him a softer better ride than any stiff ome setup would.

 

[Christopher_t4r]

Thanks for all the replies. Now I just have to figure out the part numbers for ordering them. I know I saw a post with them around t4r.org somewhere

 

[jobenchain]

I'd seriously consider something besides stock 99's. My 99 had rear sag, and I replaced with KYB's and Old Man Emu springs. 881 in the front, 906 in the rear. Damn near stock for height... but level. More importantly, it handles way better in the turns... especially under load.

I put on the Monomax all the way around, with cheap Moog springs off Amazon. The front stands up perfect, but the rears sagged immediately (I wasn't surprised considering those springs were about $30). My truck has the long center cone bump-stops inside the rear coils, and there's only about 1.5 inch gap for travel. I often feel it bottom out, especially loaded for camping. What should that gap be? If I just do the 906 rear coils will I end up with a significant rake?

 

[Tom'sToyotaFarm]

I have KYB shocks on my 2005 Tundra and they are JUNK. I wouldn't buy them again.

 

[boma23]

thread revival!

Just wondering if you ever fitted the 906 rears with the Monomax, and what the rear height was. I've got Moog and Monomax all round, but the rears have sagged quite badly as well. I'm trying to decide on whether to go with the 99 tall springs, or the 906 for the rears, given the front is still at near standard height. I quite like a little bit of higher rake in the rear, as long as not too extreme, and the vehicle often is carrying 100+ lbs of tools in the rear.

I was wondering if the Monomax would reduce the lift offered by the 906 springs, given they are not lift-specific application?

 

[TheLincolnGreen]

thread revival!

Just wondering if you ever fitted the 906 rears with the Monomax, and what the rear height was. I've got Moog and Monomax all round, but the rears have sagged quite badly as well. I'm trying to decide on whether to go with the 99 tall springs, or the 906 for the rears, given the front is still at near standard height. I quite like a little bit of higher rake in the rear, as long as not too extreme, and the vehicle often is carrying 100+ lbs of tools in the rear.

I was wondering if the Monomax would reduce the lift offered by the 906 springs, given they are not lift-specific application?

I added daystar 1.5 spacers to the rear moog springs and it corrected the sag. It is still cheaper than the ome springs, but I would go with the ome if I had the money.