99 K2500 rear axle hub seal leak - The 1947 - Present Chevrolet & GMC Truck Message Board Network

brwn70gmc · 03-01-2015, 01:13 AM

My 99 3/4 ton Suburban has a Corporate 14 bolt rear end. The passenger side rear hub seal leaks, and needs replacing every 2-3 years (along with soaked brake shoes) Is the whole housing assembly bad since the hub seal rides on
it? I also have a whine under power, which goes away on coast, thinking that might be a pinion bearing?

95 S_Trucker · 03-01-2015, 08:45 AM

It could be a pinion bearing making the noise. Down shift to 3rd or 2nd. Let off the gas. Does it make the same noise? I pinion bearing will make load when there is any kind of twisted load on the axle, whether it's up or down.

Clean off the spindle where the sequel rides with emery cloth. Get it as clean as you can.

You'd have better luck in the 88-98 section.

72MARIO · 03-01-2015, 08:52 AM

When you replace the seal are you using small amount of a Rtv on the seal ? My dad had problems with his and we learned thag s the proper way to install them.

83GMCK2500 · 03-03-2015, 05:16 PM

How does the surface of the axle tube look where the seal rides? Read THIS POST concerning a possible issue.

brwn70gmc · 03-27-2015, 02:10 PM

The Speedi-Sleeve option looks great. Does the Speedi-Sleeve go by application or size?Is it safe to order that specific part# or should I have it mic'd to ensure the shaft size?

03-01-2015, 01:13 AM	#1
brwn70gmc Registered User Join Date: Dec 2014 Location: north of Seattle, WA Posts: 33	99 K2500 rear axle hub seal leak My 99 3/4 ton Suburban has a Corporate 14 bolt rear end. The passenger side rear hub seal leaks, and needs replacing every 2-3 years (along with soaked brake shoes) Is the whole housing assembly bad since the hub seal rides on it? I also have a whine under power, which goes away on coast, thinking that might be a pinion bearing?

03-01-2015, 08:45 AM	#2
95 S_Trucker Registered User Join Date: Oct 2009 Location: . Posts: 2,187	Re: 99 K2500 rear axle hub seal leak It could be a pinion bearing making the noise. Down shift to 3rd or 2nd. Let off the gas. Does it make the same noise? I pinion bearing will make load when there is any kind of twisted load on the axle, whether it's up or down. Clean off the spindle where the sequel rides with emery cloth. Get it as clean as you can. You'd have better luck in the 88-98 section.

03-01-2015, 08:52 AM	#3
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: 99 K2500 rear axle hub seal leak When you replace the seal are you using small amount of a Rtv on the seal ? My dad had problems with his and we learned thag s the proper way to install them. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

03-03-2015, 05:16 PM	#4
83GMCK2500 Registered User Join Date: Sep 2009 Location: Beaverton, OR from WA State Posts: 1,515	Re: 99 K2500 rear axle hub seal leak How does the surface of the axle tube look where the seal rides? Read THIS POST concerning a possible issue. __________________ Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96

03-27-2015, 02:10 PM	#5
brwn70gmc Registered User Join Date: Dec 2014 Location: north of Seattle, WA Posts: 33	Re: 99 K2500 rear axle hub seal leak The Speedi-Sleeve option looks great. Does the Speedi-Sleeve go by application or size?Is it safe to order that specific part# or should I have it mic'd to ensure the shaft size?

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