JBA or SPC

$560 shipped

I was a little set back when I saw shipping may take 1-2 weeks on their website. But I wanted JBA more than the SPC so I was willing to wait. I was even more shocked when I placed the order and that evening got a text from Marlin about my order and informing me of emails coming my way. Very nice to see the personal text to me. Only other time I've seen that is with BOSS. Can't wait to get these in today and hopefully installed this week.

 

Are you installing them yourself?

 

Yeah I’m going to give it a shot. I figure if I installed the Bilstein 6112s at home I can do this as well. I’ve read a couple good threads on here that gives tips for swapping out the UCAs

 

Installed the UCAs today and added another shim on the drivers side. Altogether about 3.5 hours of work. Biggest PITA part for me was breaking the ball joint off of the steering knuckle. Don’t know why but those were such a pain.

Aside from that, it’s so straightforward. I didn’t have to remove anything from the engine compartment but did break loose a couple wiring harness mounts.

A quick trip to Auto Zone for the proper Moly EP Lithium grease was all I had to get. Now time for an alignment. Hopefully the numbers are better.

 

Figured I'd chime in here since this is a heavily debated subject. I was on the fence about JBA vs SPC.
I called JBA and asked about the differences between the 2. What I got mostly back was trash talking SPC for QC issues. Taking what he said with 1 grain of salt I decided to order both.
The SPC ended up on my rig 08 dbl tundra with FOX 2.5 DSC 3/1 combo
The JBA ended up on my partners rig 16 1794 tundra with ICON 2.5 resis with about 2 in of lift.
The other notable difference here is that my truck with the SPC Arms has gusseted spindles.
Both of drove HARD on mostly old forest service roads for 6 months. JBA arms saw more miles but they were highway. SPC arms took higher speeds offroad and were jumped on a regular basis.
The ONLY problem with either arms we had was the ball joints on the JBA arms. One is shot and the other is probably close. (This could be contributed to the gusseted spindles but I wouldn't bet on it.)
Both are quality but JBA is overated plain and simple.
I realize this isn't a scientifically sound comparison but it's certainly better than "buy this arm cause it's what I bought" post.

Also for those Worrying about alignment issues with SPC. Set your arms to the first positive caster (+1.00 I think) and have the techs align with the tabs on the LCA. I asked for +3.5 - 4.0 caster and they were able to get it no problem.
I like the adjustability of SPC and the black color.
If you like the red color get the JBA.

 

Are your JBA’s attached to the factory spindle arms?

 

You guys don't have off road shops in your areas? Those guys usually know what they're doing. If you go to pep boys or firestone or something then ya I guess the SPCs aren't ideal.

 

i went JBA works for me !!

 

I have a set of JBAs and they are solid, although when lifted, the rubber boot doesn't completely cover the backside of the ball joint. I noticed this when switching coliovers and contacted JBA. There is a newer version of the ball joint and boot out which should correct this, but ~$70 a pop, I'm just going to keep them greased up and not worry about it until they are shot.

 

How old are your JBA’s? I just got mine a week ago and being installed today. Hopefully mine came with the newer version ball joints.

 

I got them around 2017.

Found it on their site finally:

All arms shipped before July 22nd, 2020 are the CLASSIC ball joint housings and need the classic ball joint boots.

So you should be good.

 

SPC. The adjustability leaves you room to move your suspension around depending on your tire setup/suspension. They will save your ass when you decide that 37s are your next tire. Plus you can, and should according to them, grease them every 10k. I enjoy parts that can be maintenanced with simple tools (grease gun). Ill be getting the SPCs sometime next year when i get new tires/lift so my vote goes to them! plus the red on the JBA and the red on the fox coils is just too much going on in the wheel well on the pros in my opinon

 

Nope.