JBA Offroad Upper Control Arms And Suspension MEGA Thread BS thread

Does anyone know what's the max castor you can get out of these? I'm at 3.3 on them right now and I'm rubbing the cab mount with 275/70/17. I'm wondering if I can get some more positive caster out of these will it be enough to clear the cab mount. So far in the thread I've seen guys get up to 3.7, should I try for that or just have the tech crank them as far as possible?

 

More caster actually puts you closer to the cab mount.

 

You are right. My first and only thought was the new geometry of the arms locate the upper further back to gain castor, which they do, which also places the tire closer to the cab mount. But I overlooked moving the lca further forward. Which moves it away from the cab. My bad.

Although overall, when compaired to a 100% stock setup, id say your still closer to the cab mount. Just the nature of moving the upper pivot point to gain the potential of higher castor settings.

 

Alignment after getting my total chaos cam gussets welded on

 

Looking forward to getting mine done.
They are sitting in a bag on the workbench.

Holy crap! Just saw, you have a 2017. They were flat already?

 

Wrench monkey at firestone ruined them

 

Also wanted to add that i have 17x8.5 0 offset wheels with a 4.75 back space on 285/70/17. I do slightly rub on the UCA only when reversing with the wheel turned until it locks.

 

Looking at getting some JBA arms. Would there be anything wrong with getting the high castor on a 1.75 inch lift?

 

Nothing wrong

 

Thanks! Really liking the HD simplicity of it and the guy backs his product.

 

I got the same thing going on. Except 285/75/16 on 16x8 Konig Countersteers. Debating what to do next. Wheel spacers will probably make it rub on the cab mount.

 

Yea, kinda irritating though. Bought the Konigs because JBA says we need 4.5" of BS, when actually more is needed.

 

Yea, it's not a huge rub. And only in reverse worse on an angle like a driveway. Haven't noticed any at full lock going forward. All I would need is maybe a 1/4" more bs...

 

Rubbing on uca, not on cab mount. Running 3 degrees of caster. May just live with it.

 

Yeah i just don't turn my wheel all the way hahaha. Only rubs on the uca I have a cmc and over 4 degrees of caster

 

Joined the JBA crew

 

I have the Standard High Caster and love them, I think the only real difference is the gussets, bushings, and the arms are thicker than Standard.

 

Me either, I went to these from Camburg Ball Joint Arms

 

Nope no secrets, just told myself I wouldn't bad mouth the product anymore. But why do you say that anyway?