User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-18-2019, 01:40 PM #1
Toy2play Toy2play is offline
Member
 
Join Date: Jul 2016
Location: Western US
Posts: 244
Toy2play is on a distinguished road
Toy2play Toy2play is offline
Member
 
Join Date: Jul 2016
Location: Western US
Posts: 244
Toy2play is on a distinguished road
Nitro Gears 29 Spline Pinion Seal and Nut

So everytime I towed my popup I would get a small leak from the pinion seal in the rear 3rd member. Since I put Nitro 4.88 gears in my 97 4runner, the pinion is upgraded from the stock 27 spline to a 29 spline pinion. You also need to purchase a new flange kit to accept this 29 spline which also comes with a new seal and nut for the pinion. When it came to replace the rear pinion seal I forgot about the change and purchased the seal, part number 90311-38047, which is for the 27 spline pinion and will not fit the 29 spline. I had a tough time figuring out what I needed and I really wanted OEM parts. Ended up finding part number 90311-41009 which is the rear pinion seal for a 29 spline pinion, and the nut was part number 90177-22003. I believe I looked up a 2004 Tacoma to get these part numbers.

I think it was in 2003 that toyota changed the 27 spline pinion to a 29 spline in some of the rear 8" axles. So far I've driven about 1200 miles with about 250 miles of towing and not a drop of oil leaking. I'm making this post so that if in the future if I need to do this again I'll have the part numbers, and perhaps someone else with the same setup might find this info helpful. The kit that Nitro sells for the flange kit that includes the seal and nut, I cant say for sure that they use OEM seals. They looked very similar, but Nitro's seal didnt have the part number that the OEM has on it. About the only difference I could tell from the two.

I'll update this post later down the road when I've put more milage on it.
__________________
97 Charged, lifted, armored, geared, locked SR5.
Toy2play is offline   Reply With QuoteReply With Quote
Old 12-31-2019, 01:12 AM #2
NelsonAZ NelsonAZ is offline
Junior Member
 
Join Date: May 2018
Location: Maricopa AZ
Posts: 3
NelsonAZ is on a distinguished road
NelsonAZ NelsonAZ is offline
Junior Member
 
Join Date: May 2018
Location: Maricopa AZ
Posts: 3
NelsonAZ is on a distinguished road
I am trying to upgrade to a Yukon 29 spline pinion now. I am running into some issues with the bearing being very tight. Did you have to change to different bearings with the change to the bigger 29 spline pinion?
NelsonAZ is offline   Reply With QuoteReply With Quote
Reply

Tags
part , pinion , rear , seal , spline

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
3rd Gen Nitro Gears Front and Rear 5.29 Marion, MA mattt4r For Sale: T4R Items 0 11-18-2018 06:25 PM
FS Nitro Gears 4.88 NEW! Tulsa, OK chuckcustom For Sale: T4R Items 3 05-31-2018 10:55 AM
Need to Regear? Nitro Gears GB on TW Babyjake16 Group Buys 1 10-20-2017 03:50 PM
Anyone use g2 or nitro gears Aznwolf118 3rd gen T4Rs 14 01-19-2015 09:35 PM
Anyone shear gears in your Rack and pinion? VerticalToy 4th Gen T4Rs 0 12-19-2010 11:33 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:53 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2019


Garage Plus vBulletin Plugins by Drive Thru Online, Inc.