Is there a 2" or 3" rear progressive or dual rate spring that actually works?

[GW Nugget]

The TJMs RR80C match up pretty close to the 862s now that you bring it up. Both are dual rate.

17.2mm diameter
Same as 862
The diff is in the number of winds
9.8 RR80C
9 862
Also the coil height
20" RR80C
18.3" 862

You could assume the extra .8 gives a little more lift over the 862s.
Should give you 22.5" center hub - fender unladen
At that ride height you'll have about 6.5" downtravel and close to 5" up with a 30mm bump spacer and Ls.

Does that sound correct?
You can try em out if you want to see how the ride is.

How much weight did you put on the rear TJM 50mm spring till it stopped doing the job for you.

I'm currently have light armor with the spare inside & no 3rd row. I tow a 6'x12' box trailer once in a while.

 

[rc51kid]

I am using 285/75/16 and the 861/862 with 30mm spacers all round. I believe two corners also have 10mm spacers to level things out. Fox 2.0 shocks from Down South Motorsports for "less then 3" travel". I cant remember the specs on them. When i lifted the front end by the frame and let the axle drop i remember seeing the drive shaft touch the sway bar. So i am running front sway bar drops. I also put longer Toyota brake lines front and rear.

The truck is slowly getting heavier but is not too bad at this point. TJM bumper but it is ALUMINUM. Warn M1200 which adds all the weight the aluminum bumper saves. IPOR sliders, small BIOR skid plate, full size Gamaviti roof rack and about to add dual batt set up. I have no rear seats but have a light weight sleeping platform. Probably weighs about what the seats weighed. When i travel cross country i probably have 400-800lb extra in the truck. i cant say it really rides any different, maybe a little nicer? Overall i am very happy with it. I think the Fox shocks really transformed the truck.

I have not been able to really exam how the flex of the system is. That would be a interesting thing to look into. I really dont know if it is good or bad with my setup.

Last time i measured this was what i had.


Center hub to fender measurements 861/862+10mm and +30mm MAF all four

LF 21.75 B spring RF 22.25 A spring

LR 22.25 RR 22.75

I dont have any good pictures. Just pictures of paces i have been. But it will give you a idea of how she sits.









This one is JUST 861/862. No spacers

 

[LS1FJ40]

I have the airlift kit and love it. I am running 50mm Ironman performance series coils. With the addition of the rtt, bike rack and bikes, rear swingout, rear storage box and air tank, loaded yeti cooler, and other miscellaneous gear it would stink bug at least and inch.

With the airlift, I just put a jack under the back a bit, throw about 30 psi on both sides, then take the jack out and then let out 5-15 psi depending on how loaded I am. Install took less than 2 hours and was only like $80 vs buying new coils for $200ish and riding harsh when unloaded.

I have about 10,000 miles on mine now with no issues. View attachment 1124732

Jesus Jr! Wash your damn truck!

 

[GW Nugget]

New OME 862 rear dual rate springs

I have been looking for a more versatile spring that will perform the ability to have a plush ride while empty, but have firm stability when loaded down on family trips. The OME 860 coils I had gave a big stinkbug while DDing around town empty then when loaded with only kids, Ice chest & misc. items it would start to squat.

After doing a lot of research I learned of springs that have two spring ratings rather than one, they call them dual rate. It turns out Old Man Emu has two to that will fit the 80 series. The 866 would be way to firm for my needs having a rating of 240/300 lbs. The other is the 862 with a rating of 170/260. 170lb. is the factory spec for the 80 series & 250lb. rate is what OME uses for the heavy 863 spring.

What does this mean?
A 170/260 lb. rating means plush/firm.
Now that I have broke them in a bit loaded & empty, they are just what I wanted. They have helped Lexi450 have even better turning manners. I can feel the plush 170lb. rate while empty, they feel very nice. When I make fast hard turns I can feel them set into the firmer 260lb. rate & it turns like it's on rails. I can't be happer.

To note: these are considered to be stock height replacement springs that gives approximately 1" lift over stock. To achieve a 2" lift I added 30mm to them giving a final center hub to bottom of flare of 22" after minus of 1" for my body lift (Stock is approx. 20").

If only OME would only add one more turn & .5mm thicker wire to the 862 it would increase lift by 1" like they do to the 850 & 850J. They could call it an 862J.... Hmmmm, just having fun.


It's level with 300 to 400 pounds in rear for test run.

 

[Racnstev]

Hey GW Nugget,
What did you come up with on these dual rate springs?
Did you make the switch?
And if so, how do you like them?
I'm looking into the same thing

Thanks
Steve

 

[CDmpc]

[QUOTE="

BTW, the 866 is a 100 series rear spring. I don't think it will fit on an 80, but don't quote me, double check me on that.

[/QUOTE]

I have been running 866's for over a year with 851 up front. The rig empty is a big fat stink bug- I have 30mm spacers but have never installed them. Once loaded with full gear @ 450-550lbs the setup is really good on the trail and the stance is perfect. I dont really concern myself too much with DD feedback- loaded I have been very satisfied with how the 866's "firm up". It is noticeable compared to DD.

 

[GW Nugget]

Yes, I have the 862s plus 30mm spacers. 40mm on driver side. The pic above are my coils. I really like the soft top rate of the coil with just me in the rig & when my kids get in I can feel the top coil compress then start sitting on the stiffer rate of the coils. It gives a very stable ride when needed.

The new Slinky coils are also dual rate & are another coil to be considered. I will be running the 75mm coils up front with my 862s in the rear. They also offer a 50mm height springs.

 

[rc51kid]

Yes, I have the 862s plus 30mm spacers. 40mm on driver side. The pic above are my coils. I really like the soft top rate of the coil with just me in the rig & when my kids get in I can feel the top coil compress then start sitting on the stiffer rate of the coils. It gives a very stable ride when needed.

The new Slinky coils are also dual rate & are another coil to be considered. I will be running the 75mm coils up front with my 862s in the rear.

Is the profile picture above the 862 +30mm and a +1" body lift on 35" tires? What is the front set up in that picture?

 

[carbon60]

Great topic.

I'm about to order coils for my HDJ81, which will be constantly loaded. I think I will fill it up with gear, add all my accessories, then weigh it. Figure out the coils based on that.

 

[GW Nugget]

Just for reference here is some info on the 866 coils.

I have been looking at the dual rate springs that OME has for a 100 series the 866. The chart has the dual rate at 240/300 & a free height of 18.3" which is .6" shorter than a 860 spring @ 18.9/19.3 inches. I also see the 865 as a good way to remove the stink bug & give a true 2" lift. The only problem I see is the free height might not allow to run the longer L shocks due to releasing the spring at full extension. The shorter standard shocks will need to be in the rear.

 

[GW Nugget]

Is the profile picture above the 862 +30mm and a +1" body lift on 35" tires? What is the front set up in that picture?

Yes. I have in front 851's plus 25mm spacer which would be same as an 850.
I'm currently running 37s with this same lift.
3.5" total lift with 37s... not to shabby... Eh?
Soon I will have the 75mm Slinky coils up front & keeping the 862+30mm in rear.
315s

37s

 

[HAAANK]

BTW, the 866 is a 100 series rear spring. I don't think it will fit on an 80, but don't quote me, double check me on that.

I called Cristo with a similar goal of deleting the stinkbug from my life and he suggested stock height (i think) 100 series coils for the rear. something to think about.

 

[GW Nugget]

I called Cristo with a similar goal of deleting the stinkbug from my life and he suggested stock height (i think) 100 series coils for the rear. something to think about.

They where the 865 then.
The 865 is a single rate coil.
The HD is listed as 866 which is a dual rate coil.

 

[Dragos80]

Yes, I have the 862s plus 30mm spacers. 40mm on driver side.

The new Slinky coils are also dual rate & are another coil to be considered. I will be running the 75mm coils up front with my 862s in the rear.

How did you get 40mm DS?
30 + 10?
My DS sits at the lowest point. About 1 inch difference between LF and LR. I took the 3rd row seats out so it is a bit lighter in the rear.
Today I got a set of Ironman 30mm spacers for the front. I don't think I will add anything to the rear, just so I can level it a little more than right now. BTW I got 861/862.

 

[GW Nugget]

If you look at the picture you can see the yellow 10mm packer spacer 30+10=40.
As for your coils, make sure the taller one is on the USA driver side or left side as you sit in vehicle. 1" is a lot, you might want to return them if they are really that bad.

 

[Dragos80]

My DS is lower than PS, and both lower than rear. IIRC rear sits around 20.75" DS 19.75" and PS maybe 20.25"

I thought 10mm added to the DS would make the front equal, plus 30mm DS + PS would just about level the front to rear.


I think they were installed correctly as far as A and B is concerned. DS vs PS. I forgot which is which.

 

[GW Nugget]

I started this thread 3 years ago before a few dual rate options hit the USA market.
Here is another thread I started that has at least 12 to 15 options of dual rate coils in 2" to 3" of lift.

Compiled coil, shock & suspension spec thread for 80 series

 

[Nay]

I started this thread 3 years ago before a few dual rate options hit the USA market.
Here is another thread I started that has at least 12 to 15 options of dual rate coils in 2" to 3" of lift.

Compiled coil, shock & suspension spec thread for 80 series

The 862 coils are actually really good for what you wanted. I have them on my Sequoia and they are a solid 2.5” lift dual rate coil on that truck and we freaking load that thing. It’s almost like they were designed for it.

But it’s really not enough coil for an 80 and once you go taller things get slinkier.

 

[Qball]

Think I’m gonna have to try a set of 866 springs soon, my heavies is just ok when empty so that means by the time I load up the rig it would be bad.

Question, how much lift 866 suppose to get? 3 inch.

 

[Qball]

How much weight did you put on the rear TJM 50mm spring till it stopped doing the job for you.

I'm currently have light armor with the spare inside & no 3rd row. I tow a 6'x12' box trailer once in a while.

When I weighted my rig rear axle was at 3100lbs and 6100lbs total, the TJM sprigs are riding really soft. TJM is really good for an empty or lightly armored rig, my guess is you want to stay under 5500lb total.