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01-27-2020, 11:42 PM
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#1 |
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VIP Member
Join Date: Nov 2008
Location: Glendora,Calif.
Posts: 1,135
Likes: 172
Liked 704 Times in 218 Posts
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12 bolt gears
I'm about to put together a rear end for a friend, it will be a 12 bolt positraction thing for the street, but all we have are 4 series posi units. Does anybody make a 3.73 or so gear for the 12 bolt that fits the 4 series unit? We're very aware of the 4 series gear sets that have a very thick ring gear to be used with a 3 series carrier, but we are going the other way, with a 3.73 or a 3.90 gear set.
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01-28-2020, 01:48 AM
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#2 |
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Senior Member
Join Date: Dec 2002
Posts: 915
Likes: 1,132
Liked 682 Times in 203 Posts
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Re: 12 bolt gears
Richmond makes them, or at least used to.
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01-28-2020, 09:38 AM
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#3 |
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Member
Join Date: Nov 2001
Location: Marion,In.
Posts: 267
Likes: 60
Liked 110 Times in 29 Posts
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Re: 12 bolt gears
US Gear # 01-888373-4 Put these in my Chevelle. I've installed three sets of US Gears and have been very happy with them. Only ring & pinions made in the USA.
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01-28-2020, 10:27 AM
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#4 |
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VIP Member
Join Date: May 2002
Location: Shelby, NC
Posts: 1,817
Likes: 2,157
Liked 2,336 Times in 549 Posts
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Re: 12 bolt gears
I think I have a 3.90 at home that only has a couple of passes.
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