9" ford ?

rod · 08-21-2011, 01:56 PM

for some strange reason the pinion support 'O' ring is leaking. is it possible to pull the support out, replace the 'O' ring and reinstall the support? it would certainly be quicker to the 5 support bolts than to have to pull the third member.
i run a 5.67 gear so the pinion is small with 6 teeth
any help will be greatly appreciated.
thanks rod in AZ

Maverick · 08-21-2011, 04:23 PM

Do you have a after market pinion support, Like a MW? I had a similar problem and had to RTV the spline on the pinion, where it slides into the yoke. The lube was actually coming through the spline and yoke. I had a leak and chased it for a while, and had to do it on two different center sections, both have after market pinion support/bearing

And I would pull the third member to fix the leak. You might be able to get away with just pulling the pinion support, depends on how lucky you are.

Robbie Draughon · 08-21-2011, 10:33 PM

I've done it before without removing the 3rd member. You just have to turn the pinion as you push it back in the housing. Getting the tail bearing lined up can be a little tricky.

08-21-2011, 01:56 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 313 Likes: 0 Liked 20 Times in 15 Posts	9" ford ? for some strange reason the pinion support 'O' ring is leaking. is it possible to pull the support out, replace the 'O' ring and reinstall the support? it would certainly be quicker to the 5 support bolts than to have to pull the third member. i run a 5.67 gear so the pinion is small with 6 teeth any help will be greatly appreciated. thanks rod in AZ

08-21-2011, 04:23 PM	#2
Maverick Member Join Date: Dec 2010 Posts: 297 Likes: 2 Liked 33 Times in 24 Posts	Re: 9" ford ? Do you have a after market pinion support, Like a MW? I had a similar problem and had to RTV the spline on the pinion, where it slides into the yoke. The lube was actually coming through the spline and yoke. I had a leak and chased it for a while, and had to do it on two different center sections, both have after market pinion support/bearing And I would pull the third member to fix the leak. You might be able to get away with just pulling the pinion support, depends on how lucky you are. Last edited by Maverick; 08-21-2011 at 07:42 PM.

08-21-2011, 10:33 PM	#3
Robbie Draughon Junior Member Join Date: Jul 2007 Location: Fayetteville, NC Posts: 76 Likes: 14 Liked 28 Times in 4 Posts	Re: 9" ford ? I've done it before without removing the 3rd member. You just have to turn the pinion as you push it back in the housing. Getting the tail bearing lined up can be a little tricky. __________________ SS/AM 2917