OME Suspension and caster correction

[Nikofzj80]

Hi fellow mudders!
I am in the process of installing an OME suspension kit/lift. 2". Components are as follow:
2850 front coil springs
60070 nitro shocks front
2860 rear coil springs (I believe these are medium load)
60071 nitro shocks rear

Setup of the truck includes ARB bull bar (in the near future winch) on the front. ARB RD1045 drawers on the back, NO fridge.

The questions are the following:
I have OME 10 mm coil spring packers for front and rear coils. Should I install them? Will they give me a higher than 2" lift?
Regarding Caster Correction, I have OME OMECA77B bushings, And I've seen the templates for installation. Should I be OK following those templates?

I did a lot of research, but didn't come up with a clear solution for the build. Sorry if I missed something.

Any guide will be extremely useful.

Cheers from Argentina!

 

[enox]

Those 10mm spacers wont provide any noticeable lift imo.

I added 15mm to the driver rear and 10mm on the passenger rear to help level the rear out after installing rear bumper with swing out. It worked for that by helping pre-load the coil.

I also have heavy springs all the way around. Bull bar, winch, rear bumper, drawers, roof rack...etc. I went with the 3.5” lift in the front and used the castor correction plates.

 

[Nikofzj80]

Those 10mm spacers wont provide any noticeable lift imo.

I added 15mm to the driver rear and 10mm on the passenger rear to help level the rear out after installing rear bumper with swing out. It worked for that by helping pre-load the coil.

I also have heavy springs all the way around. Bull bar, winch, rear bumper, drawers, roof rack...etc. I went with the 3.5” lift in the front and used the castor correction plates.

Thanks for the reply. So the spacers are only to be installed to level the truck, no noticeable lift with those?
So caster correction would be necessary in my case in your opinion? With a 2" lift. Trying to figure that out.

Cheers!

 

[enox]

You wont be able to notice 10mm, unless you park on a flat and I mean flat surface and use a tape measure.

Castor correction is important and you should use those bushings.

 

[Nikofzj80]

You wont be able to notice 10mm, unless you park on a flat and I mean flat surface and use a tape measure.

Castor correction is important and you should use those bushings.

Advice taken!
Cheers

 

[cartercd]

The 10mm spacers will give you 10mm (3/8") of lift. These are usually used to level out one end or the other. You won't really know how level your truck is going to sit until the springs have settled and you have it loaded to your normal configuration. I'd be inclined to say that with that front ARB/winch, you are more likely to need the spacers in front than back. You can get taller spacers if needed (I think OME tops out at 30mm). It is not recommended to stack spacers on top of one another, so figure out how much height you need and order appropriately.

With a 2" lift the castor correction bushings will be needed to keep you from wandering all over the road. The instructions provided by OME are accurate. It is not a bad idea to get an alignment after the install to see if your caster is within specs. Some will argue that there are better ways to correct caster (caster plates or offset control arms) as the OME bushing are prone to early failure, but I have been using the OME bushings in blissful ignorance for 80,000 miles with no issues. Pressing these bushings is not for the faint of heart, so make sure you have a press up for the job or have a pro do it. There are many threads on this topic.

Good luck with your install.

 

[Nikofzj80]

The 10mm spacers will give you 10mm (3/8") of lift. These are usually used to level out one end or the other. You won't really know how level your truck is going to sit until the springs have settled and you have it loaded to your normal configuration. I'd be inclined to say that with that front ARB/winch, you are more likely to need the spacers in front than back. You can get taller spacers if needed (I think OME tops out at 30mm). It is not recommended to stack spacers on top of one another, so figure out how much height you need and order appropriately.

With a 2" lift the castor correction bushings will be needed to keep you from wandering all over the road. The instructions provided by OME are accurate. It is not a bad idea to get an alignment after the install to see if your caster is within specs. Some will argue that there are better ways to correct caster (caster plates or offset control arms) as the OME bushing are prone to early failure, but I have been using the OME bushings in blissful ignorance for 80,000 miles with no issues. Pressing these bushings is not for the faint of heart, so make sure you have a press up for the job or have a pro do it. There are many threads on this topic.

Good luck with your install.

Thank you for the reply. So it is a direct lift with the spacers, I see. Great. Will check after the install if I need to install them.
Regarding castor correction, as you and @enox stated, I will proceed with the install of the One bushings and check how it goes!

Thanks for the input.\
Cheers

 

[Rupert]

Guys, I'm planning to run 851 front & 860 rear, anyone know if this setup will keep the truck level? It's completely stock, no special bumper, etc.

 

[enox]

The 80's came a little higher in the rear, stock to accommodate weight of passengers and load in the rear.

I think if you want level you gotta go with the J springs in the front. Lift+level.

I might have my springs mixed up but have you seen how they're itemized in cruiser outfitters website?

 

[Rupert]

Thanks enox, will check out cruiser outfitters later. By the way, do you figure I can stick with the original caster bushings if I use the 851 & 860 or 861 & 862 combo? Or will I need two or three degrees caster correction bushings with these new springs?

 

[greentruck]

Thanks enox, will check out cruiser outfitters later. By the way, do you figure I can stick with the original caster bushings if I use the 851 & 860 or 861 & 862 combo? Or will I need two or three degrees caster correction bushings with these new springs?

For 861/862, no caster correction needed since the geometry is all pretty much the same as stock. Once you start changing away from stock values is where you'll find the need for correction.

 

[Rupert]

Thanks green.