Stripped oil fill plug
October 5th, 2019, 04:34 PM
#1
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Join Date: Mar 2007
Location: eastern MA
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Stripped oil fill plug
I have a 50 year old Olds rear end and the oil fill plug is stripped. It is the 3/8 square size hole that is a bit rounded. Any ideas on how to get it out so I can replace it? I was thinking of welding a 3/8 adapter in but I believe the diff is cast correct? I know the tubes are steel but not sure about the differential? Any ideas?
October 5th, 2019, 05:04 PM
#3
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Location: The Seasonally-Frozen Wastelands
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Differential case is cast iron. The plug will be steel.
I just did this on a transfer case less than a week ago. Some moron rounded-out the 10mm hex Allen recess by--probably--trying to use a worn-out 3/8 Allen socket. I had to weld a bolt to the recess in the plug, and then wrench on the bolt head to unscrew it.
I've become very fond of installing brass plugs where the steel plug used to be--but brass doesn't grow on trees, and anyway my transfer case plug is metric--it's hard enough finding the proper metric plug in steel never mind trying to get one in brass.
I just did this on a transfer case less than a week ago. Some moron rounded-out the 10mm hex Allen recess by--probably--trying to use a worn-out 3/8 Allen socket. I had to weld a bolt to the recess in the plug, and then wrench on the bolt head to unscrew it.
I've become very fond of installing brass plugs where the steel plug used to be--but brass doesn't grow on trees, and anyway my transfer case plug is metric--it's hard enough finding the proper metric plug in steel never mind trying to get one in brass.
October 5th, 2019, 06:17 PM
#4
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Join Date: Mar 2007
Location: eastern MA
Posts: 3,287
Differential case is cast iron. The plug will be steel.
I just did this on a transfer case less than a week ago. Some moron rounded-out the 10mm hex Allen recess by--probably--trying to use a worn-out 3/8 Allen socket. I had to weld a bolt to the recess in the plug, and then wrench on the bolt head to unscrew it.
I've become very fond of installing brass plugs where the steel plug used to be--but brass doesn't grow on trees, and anyway my transfer case plug is metric--it's hard enough finding the proper metric plug in steel never mind trying to get one in brass.
I just did this on a transfer case less than a week ago. Some moron rounded-out the 10mm hex Allen recess by--probably--trying to use a worn-out 3/8 Allen socket. I had to weld a bolt to the recess in the plug, and then wrench on the bolt head to unscrew it.
I've become very fond of installing brass plugs where the steel plug used to be--but brass doesn't grow on trees, and anyway my transfer case plug is metric--it's hard enough finding the proper metric plug in steel never mind trying to get one in brass.
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