Gs450h fsport discs and brakes

[Skm77]

Hi guys bought new discs and pads for my fsport from lexus now there squealing at low speeds my question is. Is there a right way round for the discs to go because they have a red spot and a green spot on they or are they universal thanks

 

[HensTeeth]

Not sure whether you're talking about the IS300 in your profile or the GS450h in the title, but some discs have different part numbers for left/right sides of the car - on the GS450h F-Sport and Premier models: see https://lexuspartsdirect.co.uk/product/lexus-gs450h-phase-4-front-brake-set/ for example. The mechanism by which the discs rotating 'backwards' would cause squeal is not clear to me, but I've a vague recollection that the cooling fins between the two braking surfaces are 'handed' to scoop maximum airflow for cooling, so it's probably worth getting it right for that reason alone, if they are.

[ColinBarber]

Red/pink is left, green is right. There is normally an L and R engraved on the disc too. Getting it wrong will affect the cooling.

Squealing is possibly due to missing clips, not using brake grease on the pad edges or not breaking in the brakes correctly. 

[Skm77]

Hi guys solved i had the discs on the wrong sides changed them over now no squeals you live and learn thanks for your help