IS F (2008-2014) Discussion topics related to the IS F model

Transmission mount upgrade (KEIN)

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Old 09-24-20, 11:14 AM
  #106  
Romeomvm
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Originally Posted by JDMV8
Mine definitely doesn't sound that loud. There's that mechanical/whirring sound but you don't hear it with music on at volume 20+, it's very minimal. I have RR engine mounts as well. Also, not sure what's up with your fitment there. Did you flip the brace? Lol.
i didn't do the install, a shop did. and yea if i put my music at 30 i can barely hear it lmao. im returning to them tomorrow morning but its a 2 hours drive from my place. is it still safe to drive?
Old 10-10-20, 10:58 PM
  #107  
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Hello. Plan on tackling this soon since i have about 170k on my 2008. But is there torque figure for the nuts? And what size socket will fit the nut? TIA
Old 11-04-20, 03:25 PM
  #108  
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Originally Posted by ISFpowered
I stumbled upon this..

https://www.ebay.com/itm/KEIN-Transm...UAAOSwQ5pdFLdp

Anyone seen or purchased one? I just ordered mine since it looks overall better then the oem design.
Getting ready to order this and I saw the verbiage here: KEIN Transmission Mount for Toyota / Lexus IS250 IS350 06-13 GS300 GS350 06-11

This is the correct mount that you ordered correct? Even though is doesn't say anything specific for the ISF?

Thx
Old 11-04-20, 04:41 PM
  #109  
Matador98
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Originally Posted by MileHIFcar
Getting ready to order this and I saw the verbiage here: KEIN Transmission Mount for Toyota / Lexus IS250 IS350 06-13 GS300 GS350 06-11

This is the correct mount that you ordered correct? Even though is doesn't say anything specific for the ISF?

Thx
Yes, that's it.
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Old 11-04-20, 04:56 PM
  #110  
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Ok, Thanks
Old 11-05-20, 01:53 PM
  #111  
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Originally Posted by Joe Z
Here is the OEM parts new - all sold separately..

I ordered the 8 fresh nuts and will reuse the 4 top bolts that attach to the trans.





I will move my discussion and noise resolution findings to the "Wheel of Fortune" thread when the time comes.


Joe Z
Can anyone verify the fitment of the motor mount 12371-38110? It’s for RCF/GSF and ours is 12380-38010. Is it all interchangeable?
Thankss
Old 11-05-20, 04:42 PM
  #112  
lobuxracer
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Originally Posted by nathanhuu
Can anyone verify the fitment of the motor mount 12371-38110? It’s for RCF/GSF and ours is 12380-38010. Is it all interchangeable?
Thankss
Joe installed it in his '08. Sounds like interchangeable to me.
Old 11-05-20, 11:45 PM
  #113  
ChpEng
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Originally Posted by lobuxracer
Joe installed it in his '08. Sounds like interchangeable to me.
+1
I can confirm @Joe Z 's list is correct. Had parts replaced on my car 2mos ago.
Full details and narratives in "Wheel of Fortune" thread.
Old 01-04-21, 05:44 AM
  #114  
ELexis
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Originally Posted by Joe Z
The RC F Track Edition uses the same 2 motor mounts and 1 rear trans mount

All found on GS F / RC F / IS F

Joe Z
Joe Z,
Interested if the OEM trans mount parts shown in photo posted, can also be installed in same year non IS F vehicle (IS 350 RWD), without issue?
Is part 12392-38020 (upper rear trans mount isolator 2015-2020 RC F 5.0 engine), a higher durometer than the suggested OEM part 2371-31070 - Automatic trans mount (06 - 2015 IS 350 base / F Sport), similar with installing the front lower control arm bushings from 2015-2020 RC F ( 48075-24010 Right / 0 offset & 48076-24010 Left / 0 offset), into base IS 350 RWD vehicle?
Old 01-04-21, 08:20 AM
  #115  
ISFpowered
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Originally Posted by ELexis
Joe Z,
Interested if the OEM trans mount parts shown in photo posted, can also be installed in same year non IS F vehicle (IS 350 RWD), without issue?
Is part 12392-38020 (upper rear trans mount isolator 2015-2020 RC F 5.0 engine), a higher durometer than the suggested OEM part 2371-31070 - Automatic trans mount (06 - 2015 IS 350 base / F Sport), similar with installing the front lower control arm bushings from 2015-2020 RC F ( 48075-24010 Right / 0 offset & 48076-24010 Left / 0 offset), into base IS 350 RWD vehicle?
Yes, it fits without any issues.
Old 01-04-21, 09:22 AM
  #116  
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Originally Posted by ISFpowered
Yes, it fits without any issues.
ISFpowered, thank you for reply and confirmation. I appreciate it! Is the bushing / isolator a higher durometer than the OEM trans mount (2371-31070), listed for the IS 350?

Last edited by ELexis; 01-13-21 at 01:14 PM.
Old 01-04-21, 09:27 AM
  #117  
ISFpowered
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Originally Posted by ELexis
Joe Z, thank you for reply and confirmation. I appreciate it! Is the bushing / isolator a higher durometer than the OEM trans mount (2371-31070), listed for the IS 350?
That idk but what I can tell you is even when that mount is new it’s soft and can be compressed by hand. I tried the Megan racing trans mount that they sell for the is350 and that’s also soft. Reason why I went with the Kein mount.
Old 01-04-21, 10:09 AM
  #118  
ELexis
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Originally Posted by ISFpowered
That idk but what I can tell you is even when that mount is new it’s soft and can be compressed by hand. I tried the Megan racing trans mount that they sell for the is350 and that’s also soft. Reason why I went with the Kein mount.
Thank you ISFpowered. Thought perhaps the bushing / isolator used for the 2015-2020 RC F, might be higher durometer over OEM used for the IS 350, Similar to the RC F lower control arm bushings being higher durometer than OEM IS 350 (which install without issue).
To confirm, would all the parts listed fit non IS F vehicle (IS 350 RWD), and should be replaced together;
12392-38020 (engine mount insulator)
12321-38020 (engine bracket)
12371-38110 (Insulator)



Last edited by ELexis; 01-04-21 at 02:25 PM.
Old 01-05-21, 05:09 AM
  #119  
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Would like to confirm the following prior to placing order. Parts listed below will fit non IS F vehicle (06 -2013 IS 350 RWD), without issue. Part 12392-38020 shown in photo provided by Joe Z, is the insulator that is "sandwiched" between part 12371-38110 and part 12321-38020, andis part that becomes defective over time similar to a bushing however, part 12392-38020 (2015 - 2020 RC F), is stiffer than that installed in non IS F / RC F vehicle, correct?
12392-38020 (engine mount insulator)
12321-38020 (engine bracket)
12371-38110 (Insulator)
Part number 12371-31070 (06 - 2015 IS 350 RWD), appears to be the complete mount and isolator as per photo however, unable to confirm.
Thank you in advance for any additional information prior to ordering parts per Joe z's photo.



Old 01-05-21, 12:08 PM
  #120  
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Would anyone know the part numbers for the bolts used for mount, if one wanted to replace existing with new ones (referenced by arrows in photo below).




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