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04-12-2002, 08:41 PM
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#1 |
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Registered User
Join Date: Feb 2002
Location: Cadiz, OH
Posts: 628
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rear pinion seal leaks
I have a 3/4 ton 4X4 with a perfectly round 10 bolt rear that the gearset comes out the front of the axle (eaton?). Is a 4:10 posi unit. Any suggestions on keeping the pinion seal from leaking? Seal was recently replaced but didn't fix the leak. Maybe in wrong? or can they be put in wrong? I have seen posts that these rears leak badly, has anybody got a fix besides changing the rear. Doesn't leak anywhere else. The engine a different story though, I keep the dust down on the road wherever I go. lol
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68 1 ton dually 292, 2001 Sebring, 2004 Trailblazer, 11 Camaro Convertible. |
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04-12-2002, 08:48 PM
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#2 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Can not help you with your pinion seal leak (I have a dana 60 rear), but I can sympathize with you on the engine leaks. Just replaced the front seal, now looking to do the rear.
------------------ 1970 GMC K25 Custom Chesapeake, VA My 70 GMCor Webshots http://community.webshots.com/user/70gmc [This message has been edited by JIMs70GMC (edited April 12, 2002).]
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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04-13-2002, 12:57 AM
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#3 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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yes, the pinion seal can be put in wrong, you need to make sure it went in perfectly straight, or real close to it. If it gets crooked in the bore at any time during installation, it can distort the seal, and therefore, not seal, also, there is usually a spring around the inside lips of the seal, these can pop out when driving the seal in, and I usually hold the spring in with some gun grease packed to the inside of the seal. Check your pinion shaft for wear on the sealing surface, if it shows any grove at all, I'd get a speedy sleve from your local parts house, this gives a new sealing surface to the shaft.
------------------ Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s Angel girl: 67 Cutlass convertible 330, 3spd stick Greener: 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE no name yet: 72 442 under serious construction
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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