HO52 Rear Axle Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GTSideSwipe · 02-19-2016, 02:15 PM

I have a feeling that my HO52 breather plug is clogged because my rear end keeps leaking from the bottom bolt after a drive. Where can I get a replacement and how do I removed it?

Mike C · 02-19-2016, 10:06 PM

I'm not sure exactly what type vent GM used but assume it is similar to other axles and it's a tube with a loosely fitting cover on the top. Be hard to clog up really.

More likely it's gravity causing the leak. Either the threads need sealant of the pinion seal is looking and it's running down if it's the front bolt. It it's the rear cover, back again to threads and/or cover gasket.

**Stocker** · 02-20-2016, 02:44 AM

Quote:

Originally Posted by Mike C

More likely it's gravity causing the leak. If it's the rear cover, back again to threads and/or cover gasket.

If it's that..... use this:

swamp rat · 02-20-2016, 02:53 AM

^^ X2! clean the thread holes and bolts real well before reassembly.

**special-K** · 02-20-2016, 08:18 AM

Brakleen clean. I've popped those caps off and clamped hose to route up high and turned down to allow for deeper water

02-19-2016, 02:15 PM	#1
GTSideSwipe Registered User Join Date: Oct 2015 Location: Puyallup WA Posts: 127	HO52 Rear Axle Question I have a feeling that my HO52 breather plug is clogged because my rear end keeps leaking from the bottom bolt after a drive. Where can I get a replacement and how do I removed it?

02-19-2016, 10:06 PM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,723	Re: HO52 Rear Axle Question I'm not sure exactly what type vent GM used but assume it is similar to other axles and it's a tube with a loosely fitting cover on the top. Be hard to clog up really. More likely it's gravity causing the leak. Either the threads need sealant of the pinion seal is looking and it's running down if it's the front bolt. It it's the rear cover, back again to threads and/or cover gasket. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

02-20-2016, 02:53 AM	#4
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: HO52 Rear Axle Question ^^ X2! clean the thread holes and bolts real well before reassembly. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

02-20-2016, 08:18 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: HO52 Rear Axle Question Brakleen clean. I've popped those caps off and clamped hose to route up high and turned down to allow for deeper water __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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