64 rear differential plug
08-27-2018, 02:34 PM
#1
Safety Car
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64 rear differential plug
What type of wrench or socket can you get on that plug? Someone said a 5/8" 8pt socket! They are nowhere to found around here.
Last edited by Redbird; 08-27-2018 at 02:37 PM. Reason: punctuation
08-27-2018, 02:36 PM
#2
Team Owner
I got a set of 4 8-pt sockets from Sears, online IIRC - they are also useful on transmission fill/drain plugs...
08-27-2018, 02:46 PM
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Correct, an 8-point socket is what is needed. Sears USED to carry them, but not so much any more. 8pt sockets are almost non existent these days. Not long ago I found a set of 6 online.
08-27-2018, 02:54 PM
#5
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The 63-64 plugs were a machine thread plug with larger heads then the 65 -79 3/4 npt plugs. You may find the 8 pt won't work but an adjustable should loosen it up. There was a gasket behind them too.
08-27-2018, 02:57 PM
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08-27-2018, 03:11 PM
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08-27-2018, 07:27 PM
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I put it up on jack stands. The filler plug came out with ease using a 7/8" 12 pt socket, not a 5/8". This is a 64 vette. The square plug measures roughly 11/16", but a 11/16 would not work. Now off to Home depot to plumb the $4 drill pump to get the fluid out and then on to the tranny. How much fluid does the differential and tranny take? Notsure what the local O'Rielly sells. Also get a tube of posi additive.
08-27-2018, 07:51 PM
#10
Safety Car
Thanks for posting this as I do not have these. The one in the link shows out of stock but I did find this set on Amazon for $38.
08-28-2018, 03:55 AM
#11
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Also worth noting that impact sockets are all 8 point, it is where I found a socket to fit the plug on my ‘63. If you have air and are without a set of these perhaps it’s time to buy!
Last edited by Rattenni; 08-28-2018 at 03:56 AM. Reason: Misspelling
08-28-2018, 08:43 AM
#12
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Castrol also makes the 80-90 wt gear oil with the posi additive in it.
08-28-2018, 10:16 AM
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If the plug has a square, a 12-pt socket will work, something on the order of 13/16", but I forgot the actual size that fits.
Duke
Duke