# Pinion seal... what's involved?
**URL:** https://forums.speedlife.net/t/pinion-seal-whats-involved/66349
**Category:** NYSpeed Automotive
**Created:** [April 17, 2009, 1:25pm UTC](https://forums.speedlife.net/t/pinion-seal-whats-involved/66349 "2009-04-17T13:25:38Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@JayS](https://forums.speedlife.net/u/JayS)
#### Post date: [April 17, 2009, 1:25pm UTC](https://forums.speedlife.net/t/pinion-seal-whats-involved/66349/1 "2009-04-17T13:25:38Z")
So driving my GTO like I stole it for 20000 miles has had it’s first casualty. When I was under there putting the new exhaust on I noticed some oil had been slung from the diff. Popped the plug off and the level is still right at the plug, but it’s wet enough that I know it’s leaking when I beat on it (pretty much all the time).
Anyone know off hand what’s involved in this and if any specialized tools are required? Going to install the GM repair DVD I got tonight and see what the official instructions involve.
PS… please don’t turn this isn’t some GM bashing shitfest. I don’t blame GM in the slightest for this based on my driving. In 20k I’ve been through somewhere around 6 sets of rear tires, so I’m well aware that I’m more to blame for this than GM. Pay to play.
---
### Author:  [@Jskrapper](https://forums.speedlife.net/u/Jskrapper)
#### Post date: [April 17, 2009, 1:52pm UTC](https://forums.speedlife.net/t/pinion-seal-whats-involved/66349/2 "2009-04-17T13:52:37Z")
Wow six sets? Nice.
---
### Author:  [@JayS](https://forums.speedlife.net/u/JayS)
#### Post date: [April 17, 2009, 2:21pm UTC](https://forums.speedlife.net/t/pinion-seal-whats-involved/66349/3 "2009-04-17T14:21:16Z")
One set were about 60% tread snows that I picked up used, but yeah… :mpd:
---
### Author:  [@JayS](https://forums.speedlife.net/u/JayS)
#### Post date: [April 17, 2009, 6:18pm UTC](https://forums.speedlife.net/t/pinion-seal-whats-involved/66349/4 "2009-04-17T18:18:48Z")
Wow, the DVD I got on ebay is amazing.
Check this out:
[http://home.roadrunner.com/~jdsears/pinion.pdf](http://home.roadrunner.com/~jdsears/pinion.pdf)