OME BP51 Install

[BMFS33]

So I got my bp51 install complete with arb UCA (wheel alignment is tomorrow)
Rides great at factory settings.
I’m set at level in the front and zero in the rear (I will be installing Dobinsons 0.5” springs soon to get some rake back)
So I have noticed a strange phenomenon since the lift was installed, I used to have a rough downshift clunk/learch when coming to a stop, since the leveling of the vehicle that learch/clunk has completely vanished and my stops are very smooth now. It always felt transmission / hybrid system related.

You may have answered this already and if so I apologize. I’m setting these BP51s up next month and will be running my +35 Method 703s, which will fit nicely. I run winter rubber for about 4 months and I have 275/70/18s on the OEM 18” wheels. Any idea if those could give me trouble with the new shocks and UCAs set at a 2” lift? They sit pretty tight and I imagine they’ll be even tighter with the new OME UCAs. Since I already have the rubber and they're basically brand new with less than 5,000 miles on em I’m looking at Ikon’s with a +25 so I don’t have to buy new rubber. But I’d rather not drop the coin on an other set of rims or rubber.

 

[fftfk]

I have BP-51s, OME UCAs, and the OEM LC 18” wheels.
They clear everything in most conditions but the front tire is pretty close to the knuckle upright and the tires can rub the rear reservoir hoses at full articulation.
It’s worse on the passenger side because of the track bar angle, so track bar correction would help some (or maybe just make it rub equally on both sides).
I went with 30mm RokBlokz spacers to fix that, and for the other benefits of being a bit wider.
BTW, those spacers are on sale right now. If I had waited one month…

Edit: also running 275/70/18

Great - now I have to climb under my car and look

 

[BMFS33]

I have BP-51s, OME UCAs, and the OEM LC 18” wheels.
They clear everything in most conditions but the front tire is pretty close to the knuckle upright and the tires can rub the rear reservoir hoses at full articulation.
It’s worse on the passenger side because of the track bar angle, so track bar correction would help some (or maybe just make it rub equally on both sides).
I went with 30mm RokBlokz spacers to fix that, and for the other benefits of being a bit wider.
BTW, those spacers are on sale right now. If I had waited one month…

Edit: also running 275/70/18

Thank you. This is helpful. 30mm spacers would get the tire out where it needs to be to avoid rub at full articulation. I still plan on winter wheeling. Those get your offset close to my +35 on the methods. I think I’m going to have to bite the bullet and buy new 18” rims for my winter rubber.

 

[jbtaco2002]

quick question for the BP-51 crew, i want to lower the front of my LC by 1/2". based on my research this means ~ 4 turns on the on the preload collar. I was hoping to get some feedback here from anyone who has adjusted theirs.

currently the front is sitting higher and i want to target a more level stance.

thanks in advance

 

[Mtn40]

quick question for the BP-51 crew, i want to lower the front of my LC by 1/2". based on my research this means ~ 4 turns on the on the preload collar. I was hoping to get some feedback here from anyone who has adjusted theirs.

currently the front is sitting higher and i want to target a more level stance.

thanks in advance

I'm not sure what the thread pitch is on the shock bodies, so no idea on number of turns.
By my math, to drop 1/2" you'd want to raise the collar by about 3/8".

If you do this, let us know. I've considered doing the same. My truck is level now and I thought a bit of rake plus getting a bit more down-travel from ride height would be worth the change.

 

[sierra110]

Are these rebuildable? I had to rebuild my Kings after 60k miles and kinda sucked

 

[Mtn40]

Are these rebuildable? I had to rebuild my Kings after 60k miles and kinda sucked

Yes rebuildable.

Here's some info. Now I know a lot more about it also.

4x4 Shock Tech

Quality parts, Fast turnaround and superior service. We stock a variety of rebuild kits for most Fox truck shocks including Raptor and TRD Pro.

4x4shocktech.com

BP 51 Suspension Rebuild Process

DISCLAIMER: i am incredibly frustrated and angry.. so what comes next is aggressive but informative Ok so i have been all over the internet looking for information on this frankly piece of **** company's flagship suspension system and any information on it.. and for some reason everyone on...

forum.ih8mud.com

This one talks about ARB Seattle doing free rebuilds. I'll be shocked if that's still available, but

BP-51 Rebuild Mileage Poll

forum.ih8mud.com

 

[jbtaco2002]

I'm not sure what the thread pitch is on the shock bodies, so no idea on number of turns.
By my math, to drop 1/2" you'd want to raise the collar by about 3/8".

If you do this, let us know. I've considered doing the same. My truck is level now and I thought a bit of rake plus getting a bit more down-travel from ride height would be worth the change.

well i did it, 4 turns = exactly 1/2" drop in the front. car is now sitting perfectly level F/R. 39" to each fenderwell at the middle of the tire

 

[ColoradoWheelin]

I have the same kit on my 25, they’ve been a massive up so far from stock.