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Dana 80 pinion seal #1945746 11/05/15 04:40 PM 11/05/15 04:40 PM
Joined: Jan 2003 Posts: 1,376 NORTHERN CA HUSTLESTUFF OP pro stock
HUSTLESTUFF OP pro stock Joined: Jan 2003 Posts: 1,376 NORTHERN CA	Hey guys, I have a 2002 3500 4x4 and recently had a tire failure and had to use my spare. I now have a pinion seal leak and just got new tires and I probably kinked the vent when I put the spare back in. Do I need to change the seal? I'm going to pressure wash the rear and check while waiting on seal. If no further leaking after topping off rear. Thanks in advance. Mike "Were in it to win it. Anything less will end up being..... A whole lot of fun doing!!" UNLAWFL RIP UN

Re: Dana 80 pinion seal [Re: HUSTLESTUFF] #1945888 11/05/15 09:03 PM 11/05/15 09:03 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Put enough pressure inside the case and something will leak. Take the pressure away and the seal should stop leaking. I think that'll happen for you if you really did kink the tube or hose. I'd hate to have to mess with a rear end that big! R.

Re: Dana 80 pinion seal [Re: dogdays] #1949685 11/11/15 11:21 PM 11/11/15 11:21 PM
Joined: Jul 2003 Posts: 3,464 Back in NJ.... E EWJ master
EWJ master E Joined: Jul 2003 Posts: 3,464 Back in NJ....	It's not a bad job-just did it recently on mine. 1973moparman (or something like that) has a video or article on it. http://forum.mopar1973man.com/topic/2016-diy-pinion-seal-replacement-dana-80/ Ed EastCoast Land Yacht Assoc. 1967 Newport Conv: 440/4 speed 1969 GTX: 440/4 speed, TX9/TX9, A34, N96 1970 Super Bee: 383/4 speed, B5/B7 1970 Coronet RT: 440/4 speed, A34, N96 1970 Coronet RT: 440/auto, A36, N96 1970 Road Runner convertible: 383/4 speed TX9/D6XW 1970 GTX: 440+6/727, A32, N96 2001 Dodge 2500 HO CTD, 6 speed, 4x4 quad cab long bed "The early bird may get the worm, but the 2nd mouse gets the cheese".

Re: Dana 80 pinion seal [Re: HUSTLESTUFF] #1949896 11/12/15 11:39 AM 11/12/15 11:39 AM
Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><]	If the rear has some miles on it, you may have to replace some bearings. The pinion seal on my '01 2500 started leaking a few months back. I thought it was just gonna be a quick seal R&R job, but when I got under it I realized there was a lot of pinion gear movement. Ended up replacing both pinion bearings and carrier bearings. CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

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