What differential gears are out there? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ZDan · 11-23-2022, 12:37 PM

Where there is friction, there is wear! The Torsen T2R in my LS FD started acting wonky, going into lock/unlock convulsions on corner exit, not cool... Replaced it with OS Giken 1.5-way, set up with minimal preload (max negative preload IIRC) and accel ramps for more lock under load. WAY better and more transparent in operation than the Torsen. If my BRZ's diff is ever gone into, I'll be getting an OSG for it.

GrandSport · 11-23-2022, 05:41 PM

Quote:

Originally Posted by NoHaveMSG

The stock torsen LSD doesn't really have anything to wear out outside an normal open diff. There are just a bunch of little gears in there.

You can always just do what I am doing, 4.3 diff, stiffer valve springs, 8K rev limit. YOLO

Out of the 4 tracks in my area the 4.3 is better at 2, the 4.1 is better at 2.

It's probably got over 200 track hours on it at this point, lol.

NoHaveMSG · 11-23-2022, 08:35 PM

Quote:

Originally Posted by ZDan

Where there is friction, there is wear! The Torsen T2R in my LS FD started acting wonky, going into lock/unlock convulsions on corner exit, not cool... Replaced it with OS Giken 1.5-way, set up with minimal preload (max negative preload IIRC) and accel ramps for more lock under load. WAY better and more transparent in operation than the Torsen. If my BRZ's diff is ever gone into, I'll be getting an OSG for it.

Yeah, I know mechanical parts can wear. I have never heard of an LSD of anytype wearing out. I'll defer to your experience on this one.

billstock67 · 11-24-2022, 09:32 AM

Check Lexus IS250 / IS300 gears / differentials. 3.7 & 3.9 available, housing interchanges with ours (in certain years). Some are LSD, many are open.

GrandSport · 11-24-2022, 01:53 PM

Quote:

Originally Posted by NoHaveMSG

Yeah, I know mechanical parts can wear. I have never heard of an LSD of anytype wearing out. I'll defer to your experience on this one.

oh, they definitely do.

11-23-2022, 12:37 PM	#15
ZDan Senior Member Join Date: May 2011 Drives: '23 BRZ Location: Providence, RI Posts: 4,584 Thanks: 1,377 Thanked 3,891 Times in 2,032 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	Where there is friction, there is wear! The Torsen T2R in my LS FD started acting wonky, going into lock/unlock convulsions on corner exit, not cool... Replaced it with OS Giken 1.5-way, set up with minimal preload (max negative preload IIRC) and accel ramps for more lock under load. WAY better and more transparent in operation than the Torsen. If my BRZ's diff is ever gone into, I'll be getting an OSG for it. Last edited by ZDan; 11-23-2022 at 06:00 PM.

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11-24-2022, 09:32 AM	#18
billstock67 Member Join Date: May 2020 Drives: 2017 Toyota 86 Location: NE Illinois Posts: 45 Thanks: 4 Thanked 12 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Check Lexus IS250 / IS300 gears / differentials. 3.7 & 3.9 available, housing interchanges with ours (in certain years). Some are LSD, many are open.

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