Got my brand new OSG LSD for Auto 370Z. It will be replacing the Quaife in my Z. Got a quote for a professional install by a high performance Differential
|
|
LinkBack | Thread Tools | Display Modes |
04-12-2022, 03:29 PM | #1 (permalink) |
Track Member
Join Date: Jul 2015
Location: South Australia, Austra
Posts: 918
Drives: 15' 370Z A/T AMM TT
Rep Power: 25 |
Questions on OSG diff install.
Got my brand new OSG LSD for Auto 370Z. It will be replacing the Quaife in my Z.
Got a quote for a professional install by a high performance Differential and gearbox specialist. Quote to install is $2K. They said they will do the following: 1. 370Z differential rebuild: Strip and inspect Chemical clean components Install Customer Supplied OS Giken LSD Set bearing preload Set pinion height Set crown wheel backlash Check mesh pattern Reassemble to factory specs. 2. Genuine Nissan Bearing & Seal Kit - inc Crown Wheel Bolts & Pinion Nut 3. Custom Solid Pinion Collar - for added Strength and Reliability with High Horsepower 4. Shims 5. **OPTION - FOR HIGH HORSEPOWER APPLICATION** Peen and Polish crown wheel and pinion: Crack test Demagnetise Shot peen to SAE J2441 guidelines Isotropic Super-Finish approximately 30% fatigue resistance improvement I am just wondering, is all this necessary or will I be paying too much? I asked if the strip and inspect is necessary on a brand new diff, and this is their reply: "This quote is based around a complete rebuild/upgrade + installing your supplied LSD. As you are running higher horsepower than most, while upgrading the LSD, is it the ideal time to do what we can to strength/future proof the diff as much as possible. So to complete a rebuild and replace the bearings the diff will be entirely stripped down. Even if we do not complete a full rebuild, we still list the strip and inspect as a process. This process means that we open the diff and strip it as far as required to do the work. For example for even a basic LSD install we would perform a crown wheel pattern and back lash check as a part of the strip down. Also, as the OS Giken LSD can have customised settings internally, we would do what is required, in consultation with you, to ensure that it is adjusted internally to operate in the best fashion to suit your usage." It doesn't seem like anyone else here has gone to these measures when installing their diffs, I tried searching some diff builds here. What do you guys rekon? |
04-12-2022, 05:36 PM | #2 (permalink) |
A True Z Fanatic
Join Date: Dec 2009
Location: 03350 Australia
Posts: 1,514
Drives: 09 Nissan 370Z M6
Rep Power: 39973 |
This is exactly what has been done to all my diff's (Nissan and non-Nissan race car). Checking the lash is mandatory, putting in new bearings and replacing the bolts the same - esp in a turbo'd car. Shot-peening is also something I do on my race car (~530hp running 290/625x16 slicks) for longevity following a CWP failure over 20 years ago. The 4.08:1 diff to go into my Z34 has been set up in this manner as well
Modifications "cost". |
04-12-2022, 07:17 PM | #3 (permalink) |
Track Member
Join Date: Jul 2015
Location: South Australia, Austra
Posts: 918
Drives: 15' 370Z A/T AMM TT
Rep Power: 25 |
Ok thanks. So i guess its worth having all this done.
Just curious, because I don't recall the original shop doing this on the Quaife install when I had that done. |
04-12-2022, 07:32 PM | #4 (permalink) |
A True Z Fanatic
Join Date: Aug 2012
Location: NW, AZ
Posts: 9,330
Drives: 10 Nissan 370z Nismo
Rep Power: 2684385 |
This is exactly what I had done for my OSG install.
Sent from my SM-G965U using Tapatalk
__________________
Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:|Fast Intentions 3" TT-TDX|SpecialtyZ/Fast Intentions 72 Row Oil Cooler|SZ 6 Puck Clutch & Flywheel|3GsCustoms|Z1|Wavetrac|Hotchkis|Whiteline |Blitz|Fortune Auto 500|Fujimura|SPL|H&R|TK|TWM|RPM Rollbar|Sparco|Next Level Performance|TrackSpec|AeroFlow Dynamics|Pioneer| |
04-12-2022, 07:36 PM | #5 (permalink) | |
A True Z Fanatic
Join Date: Aug 2012
Location: NW, AZ
Posts: 9,330
Drives: 10 Nissan 370z Nismo
Rep Power: 2684385 |
Quote:
Sent from my SM-G965U using Tapatalk
__________________
Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:|Fast Intentions 3" TT-TDX|SpecialtyZ/Fast Intentions 72 Row Oil Cooler|SZ 6 Puck Clutch & Flywheel|3GsCustoms|Z1|Wavetrac|Hotchkis|Whiteline |Blitz|Fortune Auto 500|Fujimura|SPL|H&R|TK|TWM|RPM Rollbar|Sparco|Next Level Performance|TrackSpec|AeroFlow Dynamics|Pioneer| |
|
04-12-2022, 08:08 PM | #6 (permalink) |
Ronin Samurai - Assassin
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 68
Posts: 35,218
Drives: 2011 Nismo GM 6M
Rep Power: 2684438 |
When I did my install. I checked the back lash and toe pattern before I tore it apart. Measured the shims. Installed new bearings on the carrier. Put everything back together. Checked back lash and toe pattern to make sure it good. It's been good.
__________________
浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html |
Bookmarks |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Quaife diff install issue | Jacdoesntlift | Engine & Drivetrain | 5 | 04-17-2021 01:39 PM |
MA Motorsports Diff Cooler Install | Rusty | Track / Autocross / Drifting / Dragstrip | 91 | 09-30-2020 08:35 PM |
Need Opinion: Diff. Brace Install | Tractionless | Engine & Drivetrain | 3 | 05-28-2020 07:48 AM |
Diff bushing install | zdirtyfour | DIY Section (Do-It-Yourself) | 4 | 07-29-2019 02:12 PM |
DIY Base model Diff install?????? | ScotyBRAVO | Engine & Drivetrain | 5 | 11-26-2012 02:45 PM |