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Old 07-31-2021, 07:16 AM   #1
Oberfranke
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Default Size square on banjo

What size is the square on the Banjo (Differential Housing)? (Metric sizes are standard for us)
Thanks in advance
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Old 07-31-2021, 07:46 AM   #2
Russell Reay
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Default Re: Size square on banjo

Bigger than 3/8", smaller than 1/2", probably 11 or 12 mm. The book says to use a 3/8 drive ratchet. It is pretty sloppy, but a 1/2" drive is too big.
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Old 07-31-2021, 12:30 PM   #3
katy
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Default Re: Size square on banjo

Something like this:

https://www.carid.com/k-tool-interna...eid=3058478643
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Old 07-31-2021, 07:57 PM   #4
Chuck Sea/Tac
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Default Re: Size square on banjo

You may have to grind down from the size to big.
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Old 07-31-2021, 08:29 PM   #5
Tom Endy
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Default Re: Size square on banjo

The 3\8" breaker bar will usually lock in place and a tap with a hammer will loosen it. Most have been butchered up by people using channel locks or vice grips to loosen them. The suppliers sell a replacement that is actually 3\8" and the breaker bar and socket wrench fit correctly.

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Old 07-31-2021, 08:30 PM   #6
Tom Wesenberg
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Default Re: Size square on banjo

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7/16", and if you find a 7/16" square head bolt, that and a Vice Grip usually work well.
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Old 07-31-2021, 08:37 PM   #7
dave in australia
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Default Re: Size square on banjo

I bought a cheap brand 1/2" drive extension and ground down the end to 7/16" square. Fits in and I can use a 1/2" ratchet to loosen and tighten the plug. Was a $5 solution.
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Old 07-31-2021, 08:54 PM   #8
mleder
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Default Re: Size square on banjo

Buy a piece of 7/16" key stock from a bearing supplier or industrial supplier like Graingers or McMaster Carr. Cut it into sections use one and give the rest to your buddies. Its cheap
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Old 07-31-2021, 09:00 PM   #9
McMimmcs
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Default Re: Size square on banjo

Quote:
Originally Posted by dave in australia View Post
I bought a cheap brand 1/2" drive extension and ground down the end to 7/16" square. Fits in and I can use a 1/2" ratchet to loosen and tighten the plug. Was a $5 solution.
A very intelligent solution. Smart thinking on your part !
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Old 08-01-2021, 06:59 AM   #10
Kurt in NJ
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Default Re: Size square on banjo

I use the tool that came in the tool kit--- the tail end of the adjustable wrench
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Old 08-01-2021, 08:39 AM   #11
Patrick L.
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Default Re: Size square on banjo

Quote:
Originally Posted by dave in australia View Post
I bought a cheap brand 1/2" drive extension and ground down the end to 7/16" square. Fits in and I can use a 1/2" ratchet to loosen and tighten the plug. Was a $5 solution.





Yep, just an old 'shorty' extension. Ground it down to size and been using it for 50 years.
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Old 08-01-2021, 09:39 AM   #12
Ray in La Mesa
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Default Re: Size square on banjo

I had a VW lug stud laying around so ground it to fit the square.
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Old 08-01-2021, 02:49 PM   #13
Ivan in southeast va.
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Default Re: Size square on banjo

I have been using a spare 3/8" for years.
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