JBA off-road
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theesotericone
New member
Why JBA? SPC's are run by a lot of us with lifted rigs and larger tires. They help in moving the wheel forward to clear the rear pinch weld.
Dieselchessy
New member
If you’re shopping based on coupons then modifying vehicles probably isn’t your game.
AZBub
New member
JBA are cheaper without a coupon. JBA doesn’t do sales. JBA arms are fixed high castor arms. If you get the JBA you won’t be disappointed and they are beefier than SPC. You can move the tires forward a lot without aftermarket UCAs if you get a good alignment tech. The pinch weld thing is an issue regardless once you go past 32” for the most part.
I’m actually putting some on tomorrow along with some other parts .
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I’m actually putting some on tomorrow along with some other parts .
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AZBub
New member
AZBub
New member
Even with a code they aren’t cheaper than JBA. I’ve tried.
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jross20
New member
Might not be the OP's reason, but the SPC's are Chinese, so that's a big no no for me. Plus there is an ongoing argument that they are cast vs forged. People have had them fail before, where is I've never seen the other ones fail.
I had JBA's before on a taco and the quality was excellent, if that matters.
HiluxSurf SSR-G
Senior Member
are the SPC UBJs also chinese-made? Would you happen to know when the SPC UCAs became chinese-made? a few years back, i read somewhere that they were US made
spartacus
Senior Member
Who has had them fail? There is a lot of stuff made in China on these trucks'from factory.
theesotericone
New member
When's he last time you heard of SPC's failing? They had an issue ten years ago that's been corrected.
I've got more wheeling miles on mine then most guys ever will and they are still rock solid. I've had spare UBJ's and bushings for them for over a year and have yet to need to install them. In that time I chewed through 2 sets of OEM LBJ's.
I don't think there's anything wrong with JBA. I just think SPC's are a much better arm for our lifted rigs.
phattyduck
Elite Member
One positive of the JBA's over SPC is ball joint availability... They are an 'off the shelf' fit ball joint from (I think) a 3/4 ton Chevy IFS? (the JBA ball joints are upgrades to the off the shelf ones, just that off the shelf ones also fit)
-Charlie
-Charlie
jross20
New member
When I was researching what arms to get before, I saw many many many failure threads because of the design flaw these have. Unless they changed it, there is no support flange to cope with the stress on the joint to the frame. Many other arms have little flange tabs here. Basically where the round housing for the bushing attaches to the arm. And cast metal is brittle vs forged metal.
I've seen photos of people rigging things together with tow straps just to limp home as they snapped.
I'm not linking the failures to China although I am not surprised. But in general, why would I buy something from China when I can get something from the US/Japan/Other? Especially for the same kind of money. Makes no sense.
I don't recall the last time. They may be fine now, but again, why would I get something from China when a US version exists? Especially when the Chinese one is almost as, if not more expensive than some US ones haha. Even more especially so for such a critical component.
I've also been wondering why none of the usual US vendors haven't made an adjustable upper arm yet.
Mtn. Runner
New member
I just received my SPC UCA’s and I will say they look VERY similar to the JBA arms. The ball joint is OEM style and has 80 degrees of flex. I ordered them them Toytec lifts and they get them straight from SPC performance in Longmont,CO. Designed, engineered, tested, and assembled in COLORADO.
jkeith.w
Official Vendor
? I've never seen SPCs that look like JBAs - pictures?
jkeith.w
Official Vendor
I'm having trouble visualizing why a gusset is needed there at all - there is nothing to limit travel at the pivot, so I'm not sure why that joint would be under stress. Is it possible the failures were because of poor weld penetration?
