New OME UCAs Installed on 4th Gen Pics/Initial Impressions/Tips

patrickufkes

New member
Been stalking these forums for years and gleaned tons of super useful info for various projects on the 5 T4Rs we have in the family. Figured I'd finally make a post as I wasn't able to find a post of this nature prior to buying/installing these UCAs since they're relatively new on the market.

Background: had COVID these past couple weeks and was out of work. Stumbled across some TC UCAs on craigslist early on in the process. They ultimately got sold before I made a decision on them and I ended up with many days of research and waffling on different UCA options for the 4th gen.

I have a 2006 V6 Sport with 139k, has toytec springs and bilstein 5100s up front.

Was very close to purchasing the JBA UCAs but ultimately decided not to after my research concluded that they would contact my coil spring at full droop. Stock UCAs were a couple millimeters from contact but didn't contact, figured it wasn't worth going through the hassle of installing UCAs to introduce a new problem to my rig that wasn't there before. Didn't like all the adjustability of the SPCs and they're nowadays a couple hundred more than the JBAs and I'd also read stories of failures in the forums.

Ended up going with the newish OME UCAs and went into it sort of blind as there's not a lot of info on the forums about them. Was able to find some stuff on a LC forum that eased my mind enough to risk it. Plus bought them on amazon so worst case I could always send them back.

Part number is UCA004 and they work for 2003+ 4runners. Got them for $560 with prime shipping and they arrived quite quickly I think 3-4 days.

Some people had mentioned that they were similar to other brands of UCA on the market and wondered if these were a re-brand of another manufacturer's product. I found these Poly performance ones and based on the photos they appear identical save the powdercoating and little zerk fitting cap. Even the product descriptions are quite similar. Both descriptions are fairly vague about what ball joint they use.

Please Wait... | Cloudflare

Initial unboxing, they were packed and shipped very well with tons of protection. The powder coating is very high quality. The little OME sticker not so much... almost falling off when I first pulled them out but oh well, didn't buy them for the sticker.

Install was straightforward and surprisingly easy.

Notes from install that I can recall off the top of my head.

-The washers on the long stud bolt that connect the UCA to the frame stay in their original orientation and position relative to the bushings. Results in a small space between the edge of the bushing and the washer that wasn't there with the OE bushings but doesn't seem to affect anything.

-Some people reported having to bend the angle between the mounting bushings on the OME UCAs a few MM wider to fit the bushings into the bracket. Mine slid right in and fit great.

-Dont torque the long bolt until the weight of the car is on the suspension, this is relatively easy to do once the tires are back on. However there was only enough space to tighten one click at a time and getting to 85 ft-lbs takes some patience and strength. May be easier with a higher quality torque wrench.

-The long bolt slides in front to back of vehicle, in order to get a wrench on the nut for this bolt (rearward portion of the bolt) I had to remove two 12mm bolts that held brackets to the frame for ABS lines. Once you remove the bolts you can shimmy them out of the way enough to get your wrench in there. Leave these unbolted until you've made your final torque adjustments.

-The ABS speed sensor line has a bracket that bolts to the rearward arm of the UCA. You need to be careful no to put too much tension on this line during removal and installation.

-If you just bolt this bracket to the new UCA it results in an angle that puts new tension on the line. I bent the inner portion of the bracket a few MM using a channel lock which allowed me to install the bracket rotated a few degrees in a manner that relieved the tension on the line that runs through the bracket.

-There is a little aluminum cap/dust cover with an Emu logo on it that goes on top of the ball joint. There is a provided hex screw to secure it in place. This goes into the same threads as the zerk fitting so need to remove the zerk fitting to screw it in. There is a little indent on the backside of the dust cap to store the zerk fitting when not in use but it does not fit in there securely. I just taped it in with electrical tape and once the hex screw is tightened it is held in place between the cap and the top of the ball joint.



I ended up calling ARB to ask about the ball joint greasing. Per the technical rep that I talked to:

-The ball joints are pre-greased from the factory and do not need to be greased at installation.

-He recommended greasing the ball joints approximately every other oil change which seems reasonable.

Alignment:After install I asked the alignment tech for between 3.5-4 deg of caster. He ended up aligning it twice trying to get it above 3.5 and said he was unable to, if he adjusted the caster it threw the other measurements too far out of whack. Ended up with 3.3 and 3.5 which I am happy with. The last alignment with the previous owner and stock UCAs maxed out caster at 1.2 and 1.1.

Other than that they have been silent for the handful of miles I've driven on them. Truck drives a little better, but I also replaced inner and outer tie rods and sway bar bushings and links at the same time so tough to tell what exactly made the difference.

New UCAs do no contact my coil at full droop. See photos below. There is more space than I had with stock UCAs.

Feel free to fire away any other questions you guys may have. Overall I am happy with the purchase and install was straightforward/uncomplicated following write-ups/videos that I was able to find easily.
 

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Dude! Thank you for posting this thread!

I have a set of these UCAs sitting in a box waiting to go on my 08 Sport, I'm on exactly the same springs/shocks you are.

What size tires do you have? And did you notice you lost and clearance front or back after the UCA install?

I am on TRD wheels with 285/70R17s and I am a bit concerned I am going to lose the little bit of clearance I've got between the tread and the mudflap.
 
Dude! Thank you for posting this thread!

I have a set of these UCAs sitting in a box waiting to go on my 08 Sport, I'm on exactly the same springs/shocks you are.

What size tires do you have? And did you notice you lost and clearance front or back after the UCA install?

I am on TRD wheels with 285/70R17s and I am a bit concerned I am going to lose the little bit of clearance I've got between the tread and the mudflap.


You’ll actually have more space because caster moves the wheel forward in the wheel well.


Sent from my iPhone using Tapatalk
 
Dude! Thank you for posting this thread!

I have a set of these UCAs sitting in a box waiting to go on my 08 Sport, I'm on exactly the same springs/shocks you are.

What size tires do you have? And did you notice you lost and clearance front or back after the UCA install?

I am on TRD wheels with 285/70R17s and I am a bit concerned I am going to lose the little bit of clearance I've got between the tread and the mudflap.

No problem man, was definitely missing a thread like this when I bought these haha

And I knew I forgot something! Thanks for reminding me.

I am on TRD pro wheels, no spacers. I ~think~ my backspacing is like +12. Running 275/70/r17 KO2s. I had no real issues with clearance before, and developed a rub on the mud flap after in reverse with wheel not yet at full lock. I just chopped half of them off and haven’t had issues since. I can take some pics later.

I have an ARB bull bar out front so can’t speak to forward clearance.

With regards to what Montijo said, I thought it would move it forward too and I would not have any clearance issues but I if I’m understanding it correctly it pushes forward the angle between the upper and lower ball joints so in effect almost like moving the top half of the tire forward and bottom half backwards.
 
More photos
 

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You’ll actually have more space because caster moves the wheel forward in the wheel well.


Sent from my iPhone using Tapatalk

+Caster adjustment at the UCA actually bring the wheel back in the wheel well, since its leaning the top of the spindle backwards.

+Caster adjustment at the LCA brings the wheel forward in the wheel well, since it pushes the bottom of the spindle forward
 
Been stalking these forums for years and gleaned tons of super useful info for various projects on the 5 T4Rs we have in the family. Figured I'd finally make a post as I wasn't able to find a post of this nature prior to buying/installing these UCAs since they're relatively new on the market.

Background: had COVID these past couple weeks and was out of work. Stumbled across some TC UCAs on craigslist early on in the process. They ultimately got sold before I made a decision on them and I ended up with many days of research and waffling on different UCA options for the 4th gen.

I have a 2006 V6 Sport with 139k, has toytec springs and bilstein 5100s up front.

Was very close to purchasing the JBA UCAs but ultimately decided not to after my research concluded that they would contact my coil spring at full droop. Stock UCAs were a couple millimeters from contact but didn't contact, figured it wasn't worth going through the hassle of installing UCAs to introduce a new problem to my rig that wasn't there before. Didn't like all the adjustability of the SPCs and they're nowadays a couple hundred more than the JBAs and I'd also read stories of failures in the forums.

Ended up going with the newish OME UCAs and went into it sort of blind as there's not a lot of info on the forums about them. Was able to find some stuff on a LC forum that eased my mind enough to risk it. Plus bought them on amazon so worst case I could always send them back.

Part number is UCA004 and they work for 2003+ 4runners. Got them for $560 with prime shipping and they arrived quite quickly I think 3-4 days.

Some people had mentioned that they were similar to other brands of UCA on the market and wondered if these were a re-brand of another manufacturer's product. I found these Poly performance ones and based on the photos they appear identical save the powdercoating and little zerk fitting cap. Even the product descriptions are quite similar. Both descriptions are fairly vague about what ball joint they use.

Please Wait... | Cloudflare

Initial unboxing, they were packed and shipped very well with tons of protection. The powder coating is very high quality. The little OME sticker not so much... almost falling off when I first pulled them out but oh well, didn't buy them for the sticker.

Install was straightforward and surprisingly easy.

Notes from install that I can recall off the top of my head.

-The washers on the long stud bolt that connect the UCA to the frame stay in their original orientation and position relative to the bushings. Results in a small space between the edge of the bushing and the washer that wasn't there with the OE bushings but doesn't seem to affect anything.

-Some people reported having to bend the angle between the mounting bushings on the OME UCAs a few MM wider to fit the bushings into the bracket. Mine slid right in and fit great.

-Dont torque the long bolt until the weight of the car is on the suspension, this is relatively easy to do once the tires are back on. However there was only enough space to tighten one click at a time and getting to 85 ft-lbs takes some patience and strength. May be easier with a higher quality torque wrench.

-The long bolt slides in front to back of vehicle, in order to get a wrench on the nut for this bolt (rearward portion of the bolt) I had to remove two 12mm bolts that held brackets to the frame for ABS lines. Once you remove the bolts you can shimmy them out of the way enough to get your wrench in there. Leave these unbolted until you've made your final torque adjustments.

-The ABS speed sensor line has a bracket that bolts to the rearward arm of the UCA. You need to be careful no to put too much tension on this line during removal and installation.

-If you just bolt this bracket to the new UCA it results in an angle that puts new tension on the line. I bent the inner portion of the bracket a few MM using a channel lock which allowed me to install the bracket rotated a few degrees in a manner that relieved the tension on the line that runs through the bracket.

-There is a little aluminum cap/dust cover with an Emu logo on it that goes on top of the ball joint. There is a provided hex screw to secure it in place. This goes into the same threads as the zerk fitting so need to remove the zerk fitting to screw it in. There is a little indent on the backside of the dust cap to store the zerk fitting when not in use but it does not fit in there securely. I just taped it in with electrical tape and once the hex screw is tightened it is held in place between the cap and the top of the ball joint.



I ended up calling ARB to ask about the ball joint greasing. Per the technical rep that I talked to:

-The ball joints are pre-greased from the factory and do not need to be greased at installation.

-He recommended greasing the ball joints approximately every other oil change which seems reasonable.

Alignment:After install I asked the alignment tech for between 3.5-4 deg of caster. He ended up aligning it twice trying to get it above 3.5 and said he was unable to, if he adjusted the caster it threw the other measurements too far out of whack. Ended up with 3.3 and 3.5 which I am happy with. The last alignment with the previous owner and stock UCAs maxed out caster at 1.2 and 1.1.

Other than that they have been silent for the handful of miles I've driven on them. Truck drives a little better, but I also replaced inner and outer tie rods and sway bar bushings and links at the same time so tough to tell what exactly made the difference.

New UCAs do no contact my coil at full droop. See photos below. There is more space than I had with stock UCAs.

Feel free to fire away any other questions you guys may have. Overall I am happy with the purchase and install was straightforward/uncomplicated following write-ups/videos that I was able to find easily.


Nice work! I am gonna try and replace my UCA’s on Saturday, so I appreciate the extra tips! If all goes well, I’ll do the lower ones and shocks too.

Going with the arms from 1A auto. Reasonably priced with consistently positive reviews.


Sent from my iPhone using Tapatalk
 
Interesting that the tech had trouble getting the alignment to the 3+ range. Does OME advertise that their UCA corrects caster on lifts? Just curious because if they don't, there is zero reason to get them since that's the only reason to go after market. I see the poly performance site mentions increased caster angles. I'm almost ready to pull the trigger on the JBA's. I asked the guys at my local shop and they confirmed that they can deal with the adjustable ball joint found on the JBA's. Evidently, not all alignment techs know how to adjust those.
 
Interesting that the tech had trouble getting the alignment to the 3+ range. Does OME advertise that their UCA corrects caster on lifts? Just curious because if they don't, there is zero reason to get them since that's the only reason to go after market. I see the poly performance site mentions increased caster angles. I'm almost ready to pull the trigger on the JBA's. I asked the guys at my local shop and they confirmed that they can deal with the adjustable ball joint found on the JBA's. Evidently, not all alignment techs know how to adjust those.

I didn't think JBAs had adjustable upper ball joints. Thought that was more of an SPC thing
 
Interesting that the tech had trouble getting the alignment to the 3+ range. Does OME advertise that their UCA corrects caster on lifts? Just curious because if they don't, there is zero reason to get them since that's the only reason to go after market. I see the poly performance site mentions increased caster angles. I'm almost ready to pull the trigger on the JBA's. I asked the guys at my local shop and they confirmed that they can deal with the adjustable ball joint found on the JBA's. Evidently, not all alignment techs know how to adjust those.

OME description claims there is "built in increased caster" which I recall reading was +3.5 deg, can't remember if I read this in a forum post or in a website description. Their description is rather vague but I read the description on numerous different sites/sources and found the 3.5 number somewhere.

Long story short they have more positive caster built in relative to the stock UCAs and its >3 deg. The JBA UCAs have built in caster and their suggestion is that you ask for +4 deg which seems to be reasonable and attainable as I have seen final results in this range a number of times in forum posts/reviews. They do not have adjustable ball joints. You must be referring to the SPC arms. These have built in + caster which varies depending on where the ball joint is set.

Regardless the OME arms achieved caster numbers that were much higher than those attainable with the stock arms. As I mentioned before my before caster was 1.1 and with stock arms and finished with mid 3's with the OMEs.
 
Great write-up and review.. I think these are another quality alternative for aftermarket UCAs

For transparency, I have the High Caster JBA UCA's on extended travel radflo 2.5 coil-overs.. and they do not contact anything. I recently rebuilt them after about 50k miles with new JBA bushings and a JBA balljoint. Great customer service and extremely high-quality parts.
-Jba does not have the adjustability of the SPC's, but imo are a higher quality and stronger part.
-Being able to swap out a balljoint on a trail (which ive never needed to do) with 4 bolts in 10 minutes is a nice piece of mind.

Anyway, I like these arms in comparisson
 
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I didn't think JBAs had adjustable upper ball joints. Thought that was more of an SPC thing

Oh yea, I guess not. For some reason I thought they were, but those 4 bolts in the BJ flange look like its just making it removable from the arm.
 
OME description claims there is "built in increased caster" which I recall reading was +3.5 deg, can't remember if I read this in a forum post or in a website description. Their description is rather vague but I read the description on numerous different sites/sources and found the 3.5 number somewhere.

Long story short they have more positive caster built in relative to the stock UCAs and its >3 deg. The JBA UCAs have built in caster and their suggestion is that you ask for +4 deg which seems to be reasonable and attainable as I have seen final results in this range a number of times in forum posts/reviews. They do not have adjustable ball joints. You must be referring to the SPC arms. These have built in + caster which varies depending on where the ball joint is set.

Regardless the OME arms achieved caster numbers that were much higher than those attainable with the stock arms. As I mentioned before my before caster was 1.1 and with stock arms and finished with mid 3's with the OMEs.

Yea, for some reason I was confusing the JBAs with the SPCs
 
I finished up my OME UCAs and Delphi Sway Bar Endlinks project today.

The PO on my truck installed the lift kit and it never felt right. The truck felt unsettled and darty with a lack of self aligning torque in the steering wheel. I read about the aftermarket UCAs for correcting caster and these felt like symptoms of a lack of caster so I went for that solution.

I like the attention to detail and thought ARB puts into their bumpers so I decided to go with their UCAs. I was very close to buying SPCs but they were backordered everywhere when I made the purchase.

Install was very paint by the numbers. Nothing really remarkable there.

Specs
Toytec Bilstine 5100 lift kit
Toyota TRD Pro Wheels
Goodyear Duratrac 285/70R17 tires
Factory stock mudflaps

After install and prior to getting an alignment I took it out for a drive. Had very apparent camber and outward toe on both front wheels. Drove like crap and rubbed a considerable amount on the mud flaps during parking lot turns (anything sharper than 1 steering wheel rotation). At this point I hoped I would get lucky and an alignment would correct the rub, I was not at all liking the prospect of having to undo this mod.

4 days of suspense later got an alignment and all is well. No more rub. The truck didn't feel a heck of a lot different on surface streets other than being a little bit more settled. When I got it on the highway is when the big difference became apparent. Instead of wandering and requiring constant attention to stay in my lane, it tracked nice and straight.... like a normal vehicle.

Coming from sports cars, I would like more self aligning torque in the steering wheel and was hoping this mod would provide more of an improvement in that regard than it did. I'm a little disappointed there, but I also see the upside as less kickback in the steering wheel when doing trails.

Conclusion
The improvement in driving dynamics alone makes this mod a total win for me. I'm less than 24 hours into having my truck back to 100% and I already don't care what this mod cost. It was completely necessary and will make this truck such a nicer highway cruiser.
 
Wish I looked in to these before getting my Icon tubular UCAs. The process and frequency of recommended bushing greasing is too much for my needs. Never again.
 
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