Rear end kit - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Rear end kit

Print Thread

Rear end kit #1461251 07/01/13 05:35 PM 07/01/13 05:35 PM
Joined: Nov 2008 Posts: 51 Czech Republic 6 69topless OP member
69topless OP member 6 Joined: Nov 2008 Posts: 51 Czech Republic	My rear end is Mopar 8 3/4" 489 case. Its 2.76 gearing no posi. One wheel is bleading oil, affecting the rear brake functionality. So I need new set of the bearing. Anyone can recommend the set of everything I need? Is it interchangeable between different rear ends or somehow unique? So far I found this set CHRYSLER CORP. 3683966 BEARING UNIT. http://mibearings.com/index.php?main_page=product_info&cPath=3834_7237&products_id=118044 OR NATIONAL-RA-301-Bearing-Differential-Kit http://www.ebay.com/itm/NATIONAL-RA-301-...dd1&vxp=mtr The car is 383cui 69 Polara convertible. Is it correct parts? Anyone can confirm? Thanks for help Last edited by 69topless; 07/01/13 05:37 PM.

Re: Rear end kit [Re: 69topless] #1461252 07/01/13 05:55 PM 07/01/13 05:55 PM
Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,930 Grand Prairie,Texas	I would think the problem isn't the bearings but the inner axle seal.

Re: Rear end kit [Re: 69topless] #1461253 07/01/13 05:57 PM 07/01/13 05:57 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Get ahold of Dr Diff here on the board.. Mopars dont have "posi's" . they have "Sure Grips" ... I am truckless..

Re: Rear end kit [Re: 340SHORTY] #1461254 07/02/13 06:43 AM 07/02/13 06:43 AM
Joined: Nov 2008 Posts: 51 Czech Republic 6 69topless OP member
69topless OP member 6 Joined: Nov 2008 Posts: 51 Czech Republic	Thanks for help, I have contacted dr diff. Ok then I need new set of the inner axle seals and can possiblle exchange the bearing while its open and axles out. Are these parts specific for each case type or universal for any 8 3/4 rear end?

Re: Rear end kit [Re: 69topless] #1461255 07/02/13 09:38 AM 07/02/13 09:38 AM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: Thanks for help, I have contacted dr diff. Ok then I need new set of the inner axle seals and can possiblle exchange the bearing while its open and axles out. Are these parts specific for each case type or universal for any 8 3/4 rear end? Why take the bearings off. If they are good and show no galling leave them alone. Clean them and pack them with new grease using a needle attachment on your grease gun. Don't worry about the seal in the retainer as it mostly keeps debrie from entering from the brake area and is not replace other than when replacing failed bearings. Go here: http://www.moparts.org/Tech/Archive/axle/12.html

Re: Rear end kit [Re: 69topless] #1461256 07/02/13 09:39 AM 07/02/13 09:39 AM
Joined: Jan 2003 Posts: 75,008 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,008 U.S.S.A.	Quote: Thanks for help, I have contacted dr diff. Ok then I need new set of the inner axle seals and can possiblle exchange the bearing while its open and axles out. Are these parts specific for each case type or universal for any 8 3/4 rear end? the seals and the axle bearings are the same across the years for the 8 3/4 rear in passenger car applications , trucks and vans may be different. The links you posted above are the correct bearins , the first link is the factory axle bearing , there are 2 seals that also are part of the bearing assembly. one is a dust seal in the end plate and the other is the axle seal that goes in the axle tube. It's a bit of work to swap out the axle bearings but not hard for a novice to do , a press is needed to reinstall the bearings without damage.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1