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Open (or Torsen) 7" Differential Swap

Old 09-09-2009, 04:26 PM
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Default Open (or Torsen) 7" Differential Swap - *NEW QUESTION

Anyone in Texas have a rear end that won't look like hustler's busted *** sphincter when I turn up the boost?


I have a 6" 1.6L unit...and a backup...but don't want to find myself on the side of the road. My commute takes me through 75miles of little-traveled farmland, and I've seen Deliverance too many times.

I want a Torsen...but don't quite have the coin, so just need something that I don't have to worry about...and can put in a clutch type LSD later.

Thanks,

Damon

Last edited by gospeed81; 09-26-2009 at 11:41 AM.
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Old 09-10-2009, 02:45 PM
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$450 shipped for an open.
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Old 09-10-2009, 02:53 PM
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get an open diff and save up for torsen or clutch-type lsd. once you have enough $, purchase new internals and swap them in.
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Old 09-10-2009, 03:16 PM
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I have a line on a local RX7 clutch pack that I could swap into a levnubbin open later.

Right now I can afford one, or the other...but not both.
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Old 09-10-2009, 05:29 PM
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Then obviously mine is the one to buy, right? lol
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Old 09-10-2009, 10:57 PM
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Originally Posted by levnubhin
Then obviously mine is the one to buy, right? lol
Make it a TorSen and you've got a deal. lol


I know I should get the open first, but then I know I won't see another deal like this (especially local) for the exact LSD and gearset I'm looking for.

http://houston.craigslist.org/pts/1320479136.html
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Old 09-10-2009, 11:46 PM
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I'm working on a deal for a planetary torses diff for us.
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Old 09-14-2009, 01:38 PM
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I have a plug and play 1.8/RX7 setup available or even a Torsen if you insist on it.
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Old 09-14-2009, 03:35 PM
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Originally Posted by miatanutz
I have a plug and play 1.8/RX7 setup available or even a Torsen if you insist on it.
I'd rather have the RX7 clutch type...


Right now I'm looking at wine on a kool-aid budget though. I'll probably have to just get an open to stay on the road worry-free for now, and put in an LSD later.

I'm liking levnubbin's deals, especially after calling most of the jokes of Mazda junkyards we have here in Texas. Just gotta save up enough to PM him and pick my ratio.

PMing you anyhow miatanutz.
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Old 09-14-2009, 04:09 PM
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Can ship it out tomorrow.
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Old 09-14-2009, 04:22 PM
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Originally Posted by levnubhin
Can ship it out tomorrow.
Coolness...can pay you next week!




Seriously looking forward to picking one up though.

Do you still have the 3.90?
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Old 09-14-2009, 04:28 PM
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Originally Posted by gospeed81
Coolness...can pay you next week!




Seriously looking forward to picking one up though.

Do you still have the 3.90?
yep, a 3.90 open.
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Old 09-14-2009, 04:30 PM
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Originally Posted by levnubhin
yep, a 3.90 open.
Need to sell a couple of more parts and I'll hit you up.
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Old 09-14-2009, 04:38 PM
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Originally Posted by gospeed81
Need to sell a couple of more parts and I'll hit you up.
roll bar??
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Old 09-14-2009, 05:21 PM
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Originally Posted by tyson87
roll bar??
I had planned on putting it back in...but PM me an offer and I'll think about it.

If the rollbar goes I've got a harness bar that would naturally go with it, as well as a Sabelt harness.
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Old 09-26-2009, 11:39 AM
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I've worked out a (great) deal on a 3.90 LSD swap with levnubbin.

These are the Tochigi-Fuji Super LSDs which are occasionally known to break their cone-clutch tabs.

Anyone think this diff will have problems with 200-250whp?

Last edited by gospeed81; 09-27-2009 at 09:16 AM.
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Old 09-26-2009, 04:57 PM
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How can yo tell if these are Tochigi-Fuji Super LSDs? Is it the weird Torsen w/ a bar when you look through it? It has that spring too?

Forget it found my answer on m.net. Yes to both of the above and 2003+.
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Old 09-27-2009, 08:52 AM
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Originally Posted by kenzo42
How can yo tell if these are Tochigi-Fuji Super LSDs? Is it the weird Torsen w/ a bar when you look through it? It has that spring too?

Forget it found my answer on m.net. Yes to both of the above and 2003+.
Yeah...if you look through it you see a bar...so it looks like an open (I was going to be happy to have a 3.90 7" open)...but that bar is actually a hex bar, not round.

The springs are a preload for the outer gears which are pushed into a conical clutch.
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Old 09-28-2009, 11:49 AM
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Damn I have an open diff...right here in SA
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Old 09-28-2009, 11:58 AM
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Originally Posted by rlogan
Damn I have an open diff...right here in SA
Whole swap?

What gearing?
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