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11-13-2013, 06:04 PM | #1 |
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Join Date: Oct 2010
Location: Monmouth New Jersey
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Howling rear when acelerating
Hi. I have a Eaton rear in my 72 Suburban that is howling when I acelerate.
Im told its the pinion seal. Anyone know what kind of cost I am looking at to get this correct ? Thanks. TjW |
11-13-2013, 07:58 PM | #2 |
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Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
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Re: Howling rear when acelerating
I really haven't heard seals make things "howl". Pinion bearing maybe? Ring and Pinion contact could be? Low on gear oil? I am just guessing.
Actually you can do the seal yourself if you are careful. The way I've done it in the past with a friend was Remove the drive shaft Heat the Pinion nut with a torch to expand the nut Get someone to hold the brakes tight Big breaker bar and I seem to recall 1 5/16 socket to remove nut This took 2 of us pushing on the bar in the day Use a puller to remove yoke from pinion shaft Pull old seal out and tap in new Install old pinion yoke and NEW nut Torque to spec. Do not overtighten. Best of luck.
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1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 Last edited by Longhorn 70; 11-13-2013 at 08:04 PM. |
11-13-2013, 08:04 PM | #3 |
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Join Date: Oct 2011
Location: jackson michigan
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Re: Howling rear when acelerating
Is it leaking gear lube from the pinon seal?
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11-13-2013, 08:41 PM | #4 |
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Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Howling rear when acelerating
Seals don't howl, its probably improper gear mesh..
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11-13-2013, 09:39 PM | #5 |
2WD Jimmy
Join Date: Mar 2005
Location: Davis County, Utah
Posts: 2,565
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Re: Howling rear when acelerating
Your diff may be on its way out.
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11-13-2013, 09:48 PM | #6 |
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Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
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Re: Howling rear when acelerating
Good news. Pull the axles, pull the drive shaft, pull the carrier, put it on the bench or take it to the shop.
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1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
11-13-2013, 10:02 PM | #7 |
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Join Date: Oct 2011
Location: jackson michigan
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Re: Howling rear when acelerating
If your pinon bearings are on the way out the pinon gear will want to climb the ring gear. This adds alot of load to the gear set and makes noise. If the pinon bearings are loose you may see gear lube seeping past the seal. Drain the lube by removing the cover and take a look inside. Look at the ware in the teeth then go online and check the pattern and see whats up. If you unhook the drive shaft you can twist the yoke and check back lash. At least how much **** is floating around in there and you can go thicker lube to get by for a short time.
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11-14-2013, 08:49 AM | #8 |
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Join Date: May 2009
Location: Motor City
Posts: 9,213
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Re: Howling rear when acelerating
Here at Truck Engineering we have a saying...
"...a 'singing' axle is a happy axle..." (lol) Seals don't make an axle howl. As mentioned, improper gear mesh/low oil/failing axle are the usual culprits. K
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