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Ford 9" Housing Drain

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72FordGTS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Topic: Ford 9" Housing Drain
    Posted: 07-February-2020 at 2:01PM
I have my rear axle apart right now and was thinking of installing a drain on the housing.  Does anyone have recommendation for one that doesn't require welding?  
Vince

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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 07-February-2020 at 2:43PM
 i drilled and tapped both of the rearends that were and are in my car Wink
1/8" NPT



Edited by californiajohnny - 08-February-2020 at 8:40AM
JOHN
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 07-February-2020 at 2:46PM
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 07-February-2020 at 5:03PM
you can do up to 1/2 inch I believe. Then get a plug with hex hole fir flush fit. Might find one with a magnet as well.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72FordGTS Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2020 at 7:32AM
I didn't think the housing material was thick enough to tap.  Did you just use a 1/4 NPT plug?  Any gasket required?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2020 at 8:09AM
I would use Rector Seal or Lue Magic. I suppose you could use a couple wraps of teflon tape too. When I resealed the duff I didn't think to add a drain. Sure keeps the floor a little cleaner. Lol
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2020 at 8:35AM
it's about 1/8" thick . remember NPT is tapered so only run the tap about half way inWink i used a brass hex plug and a wrap of teflon tape no leaks Big smile i drilled on the passenger side just up from the flat bottom part (away from the ring gear, away from where you'd put a jack)Wink
1/4NPT or 1/8NPT will work

 going 3/8 or 1/2 would be too large of threads in that thin housing
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2020 at 8:39AM
 actually looking at that pic... i used 1/8 NPT tap and plug
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 08-February-2020 at 9:27AM
We drilled and plugged torque converters with 1/8" brass plugs after flushing.
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