Upper Control Arm IS250 AWD
#32
i haven't actually gotten around so doing the Moog ball joint by itself yet. got some ichiba v1's and had to rip apart my rear end (hub/axle removal on both sides). huge PITA, very frustrating. so i'm putting off installing new joint. however, a mechanic friend just did a ball joint install on his SC. it is definitely possible to do just the joint install without the entire arm assembly, but it is jut much more difficult and time consuming because of the pressing required. but a good C-clamp or the loaner kit from autozone will suffice. so with the arm already pressed, very easy. with just the joint, certainly possible, just more time consuming (but still potentially way cheaper).
#33
Lead Lap
iTrader: (13)
Well my UCA came in today. I just installed it not as bad as I thought. About 1 hours worth of work. The poping noise is gone, but I still have a small faint one now. I'm thinking it's the lowers now. Will buy all new ones from Rock Auto. Also planning to rebuild my old one with a new press in one. I'm taking it to work on Monday to press the ball joint. It should be fairly easy to do with a 55 ton press.
#35
Lead Lap
iTrader: (13)
Yeah it looks that way. It did have a lot if play once I got the lower arm high enough. It just moved around fairly easy. The clunking noise is gone. Yet I still have a small squeaking noise while turning at slow speeds. It's gotta be the inner or outer tied rods. As far as I can tell the lower ball joints are still good.
#36
Lexus Test Driver
iTrader: (2)
Yeah it looks that way. It did have a lot if play once I got the lower arm high enough. It just moved around fairly easy. The clunking noise is gone. Yet I still have a small squeaking noise while turning at slow speeds. It's gotta be the inner or outer tied rods. As far as I can tell the lower ball joints are still good.
You may know this but as for checking the inner tie rod, get the tires on solid surface and with a helper, have them rock the steering wheel back and forth maybe an inch or bit more. Grab the racks boot and squeeze until you can pinch the ball and socket. As the load from wheel being turned transitions, if there is slop in the socket you can feel it move through the boot. Its too bad photobucket went the way it did or I'd post a gif.
When the joint gets real loose you can feel it by hand. Leave one tire on the ground and jack the other side at the LCA. Grab the tire at 3 and 9 O-clock and rock it back and forth. If you feel any play confirm it is not the outer tie rod end. May need a helper for this.
What is your opinion of ride quality of those poly bushings you have on the LCA. Did it up the vibes and cabin road noise?
#37
Lead Lap
iTrader: (13)
The lower carrying the weight of the nose / springs load usually have a tiny bit of play in them. Under load they have to be pretty loose to clunk. Was there any tears in the boot on the top to let water in? Looks like hint of rust there.
You may know this but as for checking the inner tie rod, get the tires on solid surface and with a helper, have them rock the steering wheel back and forth maybe an inch or bit more. Grab the racks boot and squeeze until you can pinch the ball and socket. As the load from wheel being turned transitions, if there is slop in the socket you can feel it move through the boot. Its too bad photobucket went the way it did or I'd post a gif.
When the joint gets real loose you can feel it by hand. Leave one tire on the ground and jack the other side at the LCA. Grab the tire at 3 and 9 O-clock and rock it back and forth. If you feel any play confirm it is not the outer tie rod end. May need a helper for this.
What is your opinion of ride quality of those poly bushings you have on the LCA. Did it up the vibes and cabin road noise?
You may know this but as for checking the inner tie rod, get the tires on solid surface and with a helper, have them rock the steering wheel back and forth maybe an inch or bit more. Grab the racks boot and squeeze until you can pinch the ball and socket. As the load from wheel being turned transitions, if there is slop in the socket you can feel it move through the boot. Its too bad photobucket went the way it did or I'd post a gif.
When the joint gets real loose you can feel it by hand. Leave one tire on the ground and jack the other side at the LCA. Grab the tire at 3 and 9 O-clock and rock it back and forth. If you feel any play confirm it is not the outer tie rod end. May need a helper for this.
What is your opinion of ride quality of those poly bushings you have on the LCA. Did it up the vibes and cabin road noise?
The RR USRS adds some NVH maybe 10-15% in cabin. Once you get used to them it's completely like stock. They're a major upgrade. It was the first mod I did actually. I was so tired of my tires cambering out on hard braking. The nose dive is completely gone. Pair that with the Fsport sway kit, and chassis brace. IMO best upgrades for the 2IS whether RWD, or AWD. I'm still on stock suspension right now. Eventually I'll probably get some BC coilovers.
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2013FSport (01-22-18)
#38
Lexus Test Driver
iTrader: (2)
So are you running a zero toe up front and have control of inner tire wear?
Looking at the pivot points for deflection and given the rack is ahead of the axle it seems that during heavy braking the lower ball joint would move rearward, this would decrease caster as the upper and lower ball joint align vertically, then to a lesser extent, as the tip of the LCA sweeps rearward, the camber would go ever slightly postive. That said because caster while going straight is not a tire wearing attribute, it seems it's the toe change that takes the big hit while braking.
Looking at the pivot points for deflection and given the rack is ahead of the axle it seems that during heavy braking the lower ball joint would move rearward, this would decrease caster as the upper and lower ball joint align vertically, then to a lesser extent, as the tip of the LCA sweeps rearward, the camber would go ever slightly postive. That said because caster while going straight is not a tire wearing attribute, it seems it's the toe change that takes the big hit while braking.
#39
Lead Lap
iTrader: (13)
So are you running a zero toe up front and have control of inner tire wear?
Looking at the pivot points for deflection and given the rack is ahead of the axle it seems that during heavy braking the lower ball joint would move rearward, this would decrease caster as the upper and lower ball joint align vertically, then to a lesser extent, as the tip of the LCA sweeps rearward, the camber would go ever slightly postive. That said because caster while going straight is not a tire wearing attribute, it seems it's the toe change that takes the big hit while braking.
Looking at the pivot points for deflection and given the rack is ahead of the axle it seems that during heavy braking the lower ball joint would move rearward, this would decrease caster as the upper and lower ball joint align vertically, then to a lesser extent, as the tip of the LCA sweeps rearward, the camber would go ever slightly postive. That said because caster while going straight is not a tire wearing attribute, it seems it's the toe change that takes the big hit while braking.
My last set of tires was the HTR. I really never had any inner tire wear. They finished pretty solid after about 2.5 years. They seemed to wear out very evenly.
I just got my new Michelins recently. First rotation after 5k my driverside is showing inner wear. It probably due to the upper arm issues, and what's still causing issues. Either rods or lower ball joint. When it comes to specs on alignments that's beyond me. I did get the car aligned. The tech said that he didn't have to do much tweaking at all. The rears was dead on spec. It was just the driver side front he tweaked pretty much.
#40
Lexus Test Driver
iTrader: (2)
I spent like 7 years at frame/alignment shop. For the most part even cars w wild camber numbers can achieve decent wear if toe and pressure are tailored to the vehicles loading and driver style.
When I grabbed mine back in July the front inners were pretty bad already. Between low pressure and being toed out 1/4", I knew I needed to adjust ASAP.
Bumped the pressure on the nose to 43psi and toe it in 1/16" to combat the damage done.
I got another 7k out of them before replacement.
I have some low mileage ISF LCAB coming. I'll run those lor a bit and toss some figs poly in my old brackets. Put the toe and zero and watch them.
Keep on eye on the tires. The name plate rating on the piller is a starting point only and for max load. Most of us run around empty and can drop the rear pressure to preserve the center section and bump the front pressure to preserve the edges as these scrub a lot in the parking lot regardless of toe settings.
When I grabbed mine back in July the front inners were pretty bad already. Between low pressure and being toed out 1/4", I knew I needed to adjust ASAP.
Bumped the pressure on the nose to 43psi and toe it in 1/16" to combat the damage done.
I got another 7k out of them before replacement.
I have some low mileage ISF LCAB coming. I'll run those lor a bit and toss some figs poly in my old brackets. Put the toe and zero and watch them.
Keep on eye on the tires. The name plate rating on the piller is a starting point only and for max load. Most of us run around empty and can drop the rear pressure to preserve the center section and bump the front pressure to preserve the edges as these scrub a lot in the parking lot regardless of toe settings.
#41
Lead Lap
iTrader: (13)
Well my UCA came in today. I just installed it not as bad as I thought. About 1 hours worth of work. The poping noise is gone, but I still have a small faint one now. I'm thinking it's the lowers now. Will buy all new ones from Rock Auto. Also planning to rebuild my old one with a new press in one. I'm taking it to work on Monday to press the ball joint. It should be fairly easy to do with a 55 ton press.
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Aspect (01-22-18)
#42
Lead Lap
iTrader: (13)
Update: I think it's best to get the OEM one on this. Instead of rebuilding it. I did fine up until it was time to put the retaining ring in place. Talk about PIA I had to use a mixture of retaing ring tools, and flat head screw drivers. Once in place it remains slightly open. Due to opening wide to clear the top part of the ball joint. At this point it won't return to it's concentric form. Leaving the clip to shift out of place. I think it would be dangerous if it's not truly centered to the retaining groove. Also the pics below show the differences OEM vs Aftermarket. The the balljoint shaft measurements on the MOOG ball joint are different too.
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Aspect (01-26-18)
#43
Racer
Thread Starter
Update: I think it's best to get the OEM one on this. Instead of rebuilding it. I did fine up until it was time to put the retaining ring in place. Talk about PIA I had to use a mixture of retaing ring tools, and flat head screw drivers. Once in place it remains slightly open. Due to opening wide to clear the top part of the ball joint. At this point it won't return to it's concentric form. Leaving the clip to shift out of place. I think it would be dangerous if it's not truly centered to the retaining groove. Also the pics below show the differences OEM vs Aftermarket. The the balljoint shaft measurements on the MOOG ball joint are different too.
#44
Lead Lap
iTrader: (13)
Update: Since last post I went ahead, and replaced the LBJ's, OTR's all with Moog parts. The inner tie rods we're still good at around 70k miles. Everything else needed replacement. The Moog parts are definitely stiffer than OEM the ride is a little harsher, but not much. I've had the rebuilt FUCA in about 1 month now with no problems.
One suggestion is once you replace the ball joint. Add grease with a needle point attachment on your grease gun to fill the boot. You don't want to put too much just enough till the boot swells a little compressed. finally below is the replacement retaining ring from McMaster-Car # 98541A134. The one supplied by Moog is PITA to work with. You'll need a retaining plier that's capable for 1.00" DIA or larger opening.
One suggestion is once you replace the ball joint. Add grease with a needle point attachment on your grease gun to fill the boot. You don't want to put too much just enough till the boot swells a little compressed. finally below is the replacement retaining ring from McMaster-Car # 98541A134. The one supplied by Moog is PITA to work with. You'll need a retaining plier that's capable for 1.00" DIA or larger opening.
Last edited by MikeFig82; 03-21-18 at 05:05 PM.
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