DulceSeek

Hi,
I am facing a problem of almost dead rear differential on my 4gen GS450H RWD Fsport 2012.
Question is can I swap it for any differential? IS250/350, or GS450H previous gen 3?
To me they all look same and they should mate to XGRFSE driveshafts?
Except Final drive ratio they should fit shouldnt they? I cant remove the diff then dissassemble it refurbish gears/pinion ring and put together would take too much time I want to swap diff for a diff.
Thanks for any reply

DaveGS4

iTrader: (2)

Which exact model is this differential going into? IS or GS. Seem to have similar posts started the same time

https://www.clublexus.com/forums/is-...wap-is250.html

DulceSeek

Hi they are two different posts, one is about fitment of SCION FRS diff into IS250 about those bushings if they are identical.
The other one is about me replacing diff in my GS450H FSPORT 2012 RWD 4th GEN

lobuxracer

iTrader: (2)

The hybrid's diff is only used on the hybrid, and even worse, there is a break in part numbers based on production date - 41110-30B10 for 03/2012 to 06/2012 and 41110-30B11 for 07/2012 to 09/2015. So the exactly correct part is elusive to say the least. This said, it might very well be possible to fit a diff with the same 3.266 gear ratio and have it work, but that's not supported by a part number search. FWIW, the gearset is also unique to this model, something I've never seen before. Usually gearsets cover a wide range of differentials, so there's little doubt this is one pricey piece of kit.

DulceSeek

Ok interesting the date of 1st registration is 6th September 2012 but no way how to find out manufacture date any suggestions please?

lobuxracer

iTrader: (2)

Send me your VIN, or look at the build sticker inside the driver's side door on the B pillar. It will show month and year. TIS shows the actual date of production through a VIN lookup. I have a TIS subscription.
Top right corner has month/year info:

DulceSeek

JTHBS1BL305002522

thank you a lot

lobuxracer

iTrader: (2)

TIS will not show me anything. Is this a North American model?

DulceSeek

I appreciate your hard work no it's UK model. There are diffs for 2012-2015 I will go wild west with this. And just grab one. I was about to go wild wild and grab one from previous gen gs450h but since you were pretty strict with to which it should mate I will go with just little bit of risk. Anyway thank you for the effort. As long as mounting points are same, shaft insert is same and final drive ratio is "same" I think it should be ok. I will report my findings in few weeks time.