Front Lower Control Arm Brackets

[bazzle]

48075-24010 / 48076-24010

Today I fitted a pair of these on the inner front lower control arms.

Pretty straightforward to fit. Jack up a bit keeping wheels 'just'on the ground, place safety stands, Loosen 2 bolts, nut and secondary bracket.  Lever arm to reduce tension and slide off. A a wipe of grease on shaft on install to stop corrosion. Tighten up TIGHT ;)

Can be even easier to fit on a hoist at your next service. Should take about 15 mins.

They are meant for the RC-F and GS-F

https://www.lexuspartsnow.com/oem-lexus-rc-f-control-arm-bracket.html                                   https://www.lexuspartsnow.com/oem-lexus-gs-f-control-arm-bracket.html

https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807624010           https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807524010

 Part No 9

They have a harder Duro and a bit more rubber fill than 2nd Gen IS_X brackets so locate the arm better when under dynamic loads. 

There are Poly ones available from Super Pro locally and FIGS etc in the USA but I wanted the quietness and no maintenance option.

 

1st driving opinions with just over 200k's today, both freeway and secondary bitumen roads.

Car drives straighter with less constant wheel corrections needed on the freeway.

Small movement of the steering wheel now transfers to movement at the road wheel. (less freeplay effect)

Coming up to intersections under hard braking the tram-lining from wear indentations was negligible :) 

Overall the car tracks like it should of. I also have the inertia damper in the steering wheel that changed the feel but could not control the movement of poor resilient bushes.

There does not appear to be any more noise and I think only a small perception of more road roughness feel at the steering wheel.

Worth the $140 they cost landed.....sure thing 

 

Link showing soft 2nd Gen ISx bushes.

https://www.youtube.com/watch?v=mpG32GK2mUY

Link showing install of Pol but ones listed above the same procedure. (thanks to Figs.)

https://www.youtube.com/watch?v=RWa3EDMvQXE

SuperPro kit

https://superpro.com.au/tradeview/index.php?view=parts_vehicleapplication&cid=999500451

[ilv1004s]

one of the best bang for buck mods u can do

[Howiefied]

If anyone is interested you can pick up for around $101aud landed at megazip.

 

[Howiefied]

Quick question, are the part numbers for IS250/350 LCA brackets same as for the ISF?

Edit found the answer: ISF RH 48075-30020 , IS250/350 RH 48075-30050 ..   just wondering if the ISF and IS250/350 were the same.. i.e. would the ISF benefit from the upgrade also.  Seems there might be a small difference between the ISF and 250, so the difference may not be as notable on the ISF (going to a GSF LCA).

[ilv1004s]

the ISF has stiffer bushings than the regualr X50's

though aftermarket USRS kits (figs or RR) is pretty much the same

[Conrad]

On 1/3/2018 at 6:53 AM, bazzle said:

48075-24010 / 48076-24010

Today I fitted a pair of these on the inner front lower control arms.

Pretty straightforward to fit. Jack up a bit keeping wheels 'just'on the ground, place safety stands, Loosen 2 bolts, nut and secondary bracket.  Lever arm to reduce tension and slide off. A a wipe of grease on shaft on install to stop corrosion. Tighten up TIGHT ;)

Can be even easier to fit on a hoist at your next service. Should take about 15 mins.

They are meant for the RC-F and GS-F

https://www.lexuspartsnow.com/oem-lexus-rc-f-control-arm-bracket.html                                   https://www.lexuspartsnow.com/oem-lexus-gs-f-control-arm-bracket.html

https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807624010           https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807524010

 Part No 9

They have a harder Duro and a bit more rubber fill than 2nd Gen IS_X brackets so locate the arm better when under dynamic loads. 

There are Poly ones available from Super Pro locally and FIGS etc in the USA but I wanted the quietness and no maintenance option.

 

1st driving opinions with just over 200k's today, both freeway and secondary bitumen roads.

Car drives straighter with less constant wheel corrections needed on the freeway.

Small movement of the steering wheel now transfers to movement at the road wheel. (less freeplay effect)

Coming up to intersections under hard braking the tram-lining from wear indentations was negligible :) 

Overall the car tracks like it should of. I also have the inertia damper in the steering wheel that changed the feel but could not control the movement of poor resilient bushes.

There does not appear to be any more noise and I think only a small perception of more road roughness feel at the steering wheel.

Worth the $140 they cost landed.....sure thing 

 

Link showing soft 2nd Gen ISx bushes.

https://www.youtube.com/watch?v=mpG32GK2mUY

Link showing install of Pol but ones listed above the same procedure. (thanks to Figs.)

https://www.youtube.com/watch?v=RWa3EDMvQXE

SuperPro kit

https://superpro.com.au/tradeview/index.php?view=parts_vehicleapplication&cid=999500451

I have a 2008 IS350. Any idea if these would fit my vehicle? Because I received an email about my order mentioning that they're for the GSF and not the IS350 and that the parts are non-refundable.

[Neurus]

On 1/3/2018 at 10:53 PM, bazzle said:

48075-24010 / 48076-24010

Today I fitted a pair of these on the inner front lower control arms.

Pretty straightforward to fit. Jack up a bit keeping wheels 'just'on the ground, place safety stands, Loosen 2 bolts, nut and secondary bracket.  Lever arm to reduce tension and slide off. A a wipe of grease on shaft on install to stop corrosion. Tighten up TIGHT 😉

Can be even easier to fit on a hoist at your next service. Should take about 15 mins.

They are meant for the RC-F and GS-F

https://www.lexuspartsnow.com/oem-lexus-rc-f-control-arm-bracket.html                                   https://www.lexuspartsnow.com/oem-lexus-gs-f-control-arm-bracket.html

https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807624010           https://www.thepartsspecialist.com/oem-parts/lexus-control-arm-bracket-4807524010

 Part No 9

They have a harder Duro and a bit more rubber fill than 2nd Gen IS_X brackets so locate the arm better when under dynamic loads. 

There are Poly ones available from Super Pro locally and FIGS etc in the USA but I wanted the quietness and no maintenance option.

 

1st driving opinions with just over 200k's today, both freeway and secondary bitumen roads.

Car drives straighter with less constant wheel corrections needed on the freeway.

Small movement of the steering wheel now transfers to movement at the road wheel. (less freeplay effect)

Coming up to intersections under hard braking the tram-lining from wear indentations was negligible 🙂

Overall the car tracks like it should of. I also have the inertia damper in the steering wheel that changed the feel but could not control the movement of poor resilient bushes.

There does not appear to be any more noise and I think only a small perception of more road roughness feel at the steering wheel.

Worth the $140 they cost landed.....sure thing 

 

Link showing soft 2nd Gen ISx bushes.

https://www.youtube.com/watch?v=mpG32GK2mUY

Link showing install of Pol but ones listed above the same procedure. (thanks to Figs.)

https://www.youtube.com/watch?v=RWa3EDMvQXE

SuperPro kit

https://superpro.com.au/tradeview/index.php?view=parts_vehicleapplication&cid=999500451

Hi Bazzle,

I am looking into the LCA bushings because my 2012 IS350 is wearing the inner side of the passenger front tyre more than it should.
The alignment guy told me it has more camber than it should and cannot be corrected by alignment only.

I have a few questions for you:

Why did you use RC-F bushes instead of IS ones? Are they somehow correcting the issue?

I see Lexus has IS specific alternative parts to replace them:

right side
48075-30030 0 offset
48075-30050 -20 offset
48075-30040 +20 offset

left side
48076-30030 0 offset
48076-30050 -20 offset
48076-30040 +20 offset

and SuperPro has variations too: they have Standard, Single offset and Double offset

Based on the links in your post, I believe you have used RC-F ones with 0 offset on both sides. Correct?
So, then I could either go with RC-F bushes, IS bushes with or without offset, or SuperPro standard, single or double offset.
With the IS options, I wouldn't know if I need 0, -20, or +20 on one side or both sides...
The SuperPro need to be pressed in the bracket which is a pain... I would need to get that done.

Are you still happy with your RC-F ones? Would you recommend me those?
Has the car become more noisy or has more vibrations?

I will appreciate your comments.

Thanks, 
 

[bazzle]

I would recommend the RCF ones. My initial research was done thru USA forums where they were a long way ahead of my changes.

What were your alignment readings. (Can't find mine atm 😞 )

From my research Camber can be adjusted to even up slightly by loosening front suspension frame mounts and moving to one side. I haven't followed this up.

My bushes are not showing any wear and my tyres are still even both sides.

My reading also found that toe plays a big factor on these cars. I had mine set to '0' each side.

This didn't change over about 25,000 ks when I had it redone with a 2nd set of PS4's. First set wore even front and rear with mainly 38psi.

Super Pro etc bushes give good feel but are a pita to fit and can be noisy and harsh.

You need to know what correction is needed before going for bushes with offset.