Diff cover with fill plug? 12 bolt - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TwoFiftyShifter · 10-12-2016, 05:47 PM

Has anyone bought something like that?

knomadd · 10-12-2016, 06:15 PM

Why not just use the fill hole on the side of the differential?

I should say I did look for one a few years back, but never really found any that were less than $150.

Z10 · 10-12-2016, 07:10 PM

I'm using this one.
http://www.ebay.com/itm/ALUMINUM-196...VX7wcs&vxp=mtr

You can see it installed on my build thread.

hardwaycooke · 10-12-2016, 08:56 PM

kinda unclear but its made by LPW..

hardwaycooke · 10-12-2016, 09:00 PM

Quote:

Originally Posted by hardwaycooke

kinda unclear but its made by LPW..

better pic..

Gmc.guy · 10-12-2016, 10:41 PM

There is weld in and bolt in bungs with a plug you could put on a stock cover if you don't want a fancy cover. Same deal for a trans pan.

TwoFiftyShifter · 10-22-2016, 09:17 PM

Quote:

Originally Posted by hardwaycooke

better pic..

I may have to go this route. I started this thread because my fill plug is snapped off in the housing. I'm pondering trying to extract the remains somehow.

TwoFiftyShifter · 10-30-2016, 04:24 PM

Quote:

Originally Posted by hardwaycooke

better pic..

I installed an LPW cover today. Man it is beefy! The flange is 9/16" thick. Really cool piece.

**GR8-68** · 10-30-2016, 05:38 PM

Quote:

Originally Posted by TwoFiftyShifter

I may have to go this route. I started this thread because my fill plug is snapped off in the housing. I'm pondering trying to extract the remains somehow.

Fill me in please, how does one actually snap off the fill plug ?

TwoFiftyShifter · 10-30-2016, 06:27 PM

Well it was stripped out when I got to it. I tried my best to get it out using hand tools and nothing. I had someone weld a bolt to it and it snapped off while trying to turn it. Weird turn of events but I've decided to fill and drain from this nifty new cover. I never-siezed the bolts of course.

**'68OrangeSunshine** · 10-30-2016, 06:38 PM

Pretty. What's the retail on that much cast aluminum?

**'68OrangeSunshine** · 10-30-2016, 06:48 PM

Quote:

Originally Posted by Z10

I'm using this one.
http://www.ebay.com/itm/ALUMINUM-196...VX7wcs&vxp=mtr

You can see it installed on my build thread.

Nice looking piece. And not real spendy.
But how would you add gear oil if the driverside fill plug on the differential was not usable? I see a well placed drain plug on the bottom, but no way to top fill.
Just roll the truck over on its roof, fill it, and roll it back, right? [lol]

Z10 · 10-30-2016, 10:20 PM

Quote:

Originally Posted by '68OrangeSunshine

Nice looking piece. And not real spendy.
But how would you add gear oil if the driverside fill plug on the differential was not usable? I see a well placed drain plug on the bottom, but no way to top fill.
Just roll the truck over on its roof, fill it, and roll it back, right? [lol]

There is a top fill plug in the diff housing. No need for another fill plug in the top of the cover. No need to flip the truck on it's roof.

**'68OrangeSunshine** · 10-30-2016, 10:53 PM

Quote:

Originally Posted by Z10

There is a top fill plug in the diff housing. No need for another fill plug in the top of the cover. No need to flip the truck on it's roof.

I know. But that wouldn't help the OP, who had to grind off his OEM fill plug.

Gmc.guy · 10-30-2016, 10:59 PM

I think he means the cover. Not housing. It's right under the rib halfway up

Gmc.guy · 10-30-2016, 11:03 PM

That must have been a cheap plumbing plug that broke off ? I think the female 3/8 drive is sunk deeper than flush. I have rounded them out and welded a bolt to get them out, but never had one break off. I replace them with a brass plug with a male hex end, not super tight either.

**'68OrangeSunshine** · 10-30-2016, 11:52 PM

I have a '72 K/5 tub parts truck. It had the female 3/8'' hex plug on the diff. It surprised me since the differentials on the '67s and '68s have a square iron plug end, about 1/2'', 9/16'', or 5/8'' -- not sure since I always use a 12'' crescent wrench -- but they're bulletproof.

Gmc.guy · 10-31-2016, 12:34 AM

Ya. The earlier square male ones have a dimple on the backside, don't they? If they would snap, I would think it would leave a hole and threads around the outside

**'68OrangeSunshine** · 10-31-2016, 02:55 AM

Highly unlikely they ever would, unless the temper of the metal has compromised by high heat -- like a fire.

TwoFiftyShifter · 10-31-2016, 09:02 AM

Quote:

Originally Posted by '68orangesunshine

pretty. What's the retail on that much cast aluminum?

$150 😭

**'68OrangeSunshine** · 10-31-2016, 01:57 PM

Quote:

Originally Posted by TwoFiftyShifter

$150 😭

Thanks. Not a priority just now. But it would be nice.

10-12-2016, 05:47 PM	#1
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Diff cover with fill plug? 12 bolt Has anyone bought something like that? __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!

10-12-2016, 06:15 PM	#2
knomadd Registered User Join Date: Jul 2012 Location: Rosenberg, Texas Posts: 3,506	Re: Diff cover with fill plug? 12 bolt Why not just use the fill hole on the side of the differential? I should say I did look for one a few years back, but never really found any that were less than $150. __________________ -Duane C/10 Club Texas member 1971 Chevy C10 "Brutus" SWB Fleetside 2016 6.0L (L96) 6L90E (driver/project) 1965 Pontiac GTO "Royal Goat" 400/TH400 w/AC (my baby)

10-12-2016, 07:10 PM	#3
Z10 Registered User Join Date: Aug 2012 Location: Midland, TX Posts: 1,267	Re: Diff cover with fill plug? 12 bolt I'm using this one. http://www.ebay.com/itm/ALUMINUM-196...VX7wcs&vxp=mtr You can see it installed on my build thread. Attached Images __________________ 1969 RS/SS Z10 Camaro Pace coupe 1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218 1979 Mazda RX7 1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary 1999 Honda Valkyrie 2006 Corvette Z06 2010 BMW 650i

10-12-2016, 08:56 PM	#4
hardwaycooke Registered User Join Date: Sep 2013 Location: anderson, sc Posts: 647	Re: Diff cover with fill plug? 12 bolt kinda unclear but its made by LPW.. Attached Images __________________ 71 LWB Large Bore 6-71 Blown 383 Stroker 4.11 Motive/EOM Eaton Posi Ported/Polished Carrier 15x8/15x16.5 MT Radials B&M Pro Shifter Truck Name- Spike

10-12-2016, 10:41 PM	#6
Gmc.guy Registered User Join Date: Nov 2015 Location: Alberta Posts: 464	Re: Diff cover with fill plug? 12 bolt There is weld in and bolt in bungs with a plug you could put on a stock cover if you don't want a fancy cover. Same deal for a trans pan. __________________ -Cody

10-30-2016, 06:27 PM	#10
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Re: Diff cover with fill plug? 12 bolt Well it was stripped out when I got to it. I tried my best to get it out using hand tools and nothing. I had someone weld a bolt to it and it snapped off while trying to turn it. Weird turn of events but I've decided to fill and drain from this nifty new cover. I never-siezed the bolts of course. __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!

10-30-2016, 06:38 PM	#11
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Re: Diff cover with fill plug? 12 bolt Pretty. What's the retail on that much cast aluminum? __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

10-30-2016, 10:59 PM	#15
Gmc.guy Registered User Join Date: Nov 2015 Location: Alberta Posts: 464	Re: Diff cover with fill plug? 12 bolt I think he means the cover. Not housing. It's right under the rib halfway up __________________ -Cody

10-30-2016, 11:03 PM	#16
Gmc.guy Registered User Join Date: Nov 2015 Location: Alberta Posts: 464	Re: Diff cover with fill plug? 12 bolt That must have been a cheap plumbing plug that broke off ? I think the female 3/8 drive is sunk deeper than flush. I have rounded them out and welded a bolt to get them out, but never had one break off. I replace them with a brass plug with a male hex end, not super tight either. __________________ -Cody

10-30-2016, 11:52 PM	#17
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Re: Diff cover with fill plug? 12 bolt I have a '72 K/5 tub parts truck. It had the female 3/8'' hex plug on the diff. It surprised me since the differentials on the '67s and '68s have a square iron plug end, about 1/2'', 9/16'', or 5/8'' -- not sure since I always use a 12'' crescent wrench -- but they're bulletproof. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

10-31-2016, 12:34 AM	#18
Gmc.guy Registered User Join Date: Nov 2015 Location: Alberta Posts: 464	Re: Diff cover with fill plug? 12 bolt Ya. The earlier square male ones have a dimple on the backside, don't they? If they would snap, I would think it would leave a hole and threads around the outside __________________ -Cody

10-31-2016, 02:55 AM	#19
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Re: Diff cover with fill plug? 12 bolt Highly unlikely they ever would, unless the temper of the metal has compromised by high heat -- like a fire. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

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