8 inch 3.55 posi third member - Vintage Mustang Forums

 
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post #1 of 8 (permalink) Old 08-06-2009, 12:58 PM Thread Starter
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8 inch 3.55 posi third member

I've been looking for a 8 inch third member with 3.55's to accompany my T5 swap and I've come across one (actually two) with posi.

The guy wants $500, each. Haven't seen them, they're two hours away (talked to him on the phone). All original, not rebuilt but he says he cleaned them up pretty good. Claims they're in good shape. Ready to be bolted in.

What do you guys think, too much or about right on the price? Or am I better off having buying a new 3.55 ring gear for an extra third member I have laying around.

I don't need the posi, but it sure is tempting...

~ Nick ~

67 Coupe, Stock 1971 302 but will be changing to a 289 that I'm "makin' some changes to". T5. Granada spindles.
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post #2 of 8 (permalink) Old 08-06-2009, 01:09 PM
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Re: 8 inch 3.55 posi third member

That seems like a bit much since all of the bearings and the clutches in the trac-lock unit could possibly need replacing. While it may be a decent deal for $500 if everything is in top shape, it could get a lot more expensive if everything ends up needing to be overhauled.
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post #3 of 8 (permalink) Old 08-06-2009, 01:12 PM
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sounds high

hit the local pick your part mustang 11 s with v8 common 355 posi i used to know the door code .

1966 convert
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post #4 of 8 (permalink) Old 08-06-2009, 01:36 PM Thread Starter
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That's what I was thinking, a little too high. He's sticking to $500. I was thinking more along the lines of $400.

I've been looking/calling around at all the junkyards within a 100 mile radius of here for 4 or five months and no one has what I want. Some of the places (2 hours away) say "yeah, we've got some 8 inch but you'd have to go out and look around, even though I'm two hours away. You'd think they'd want a little business and go look for me, too lazy I guess. That just burns me up and I don't even wanna give them my business then.

Hard to find around here.

~ Nick ~

67 Coupe, Stock 1971 302 but will be changing to a 289 that I'm "makin' some changes to". T5. Granada spindles.
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post #5 of 8 (permalink) Old 08-06-2009, 01:46 PM
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i'd just get the new ring set and rebuild your extra 3rd member . then you know what shape it's in

1966 convert
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post #6 of 8 (permalink) Old 08-06-2009, 02:00 PM Thread Starter
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8 inch 3.55 posi third member

Would this be something you guys think I could trust? Or is there a better brand of posi/trac-loc I should go with?


http://cgi.ebay.com/ebaymotors/8-For...Q5fAccessories

~ Nick ~

67 Coupe, Stock 1971 302 but will be changing to a 289 that I'm "makin' some changes to". T5. Granada spindles.
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post #7 of 8 (permalink) Old 08-06-2009, 04:14 PM
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Re: 8 inch 3.55 posi third member

I have been watching that auction myself. I have a spare 3rd member with only a few thousand miles on it (open) that I want to swap that differential into. I had emailed that seller a while back and they told me that is a Yukon brand differential.

Matt
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post #8 of 8 (permalink) Old 08-06-2009, 04:25 PM Thread Starter
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Re: 8 inch 3.55 posi third member

Is Yukon a good brand?

Only reason I'm watching there is because it's only about 3 hours away from me.

~ Nick ~

67 Coupe, Stock 1971 302 but will be changing to a 289 that I'm "makin' some changes to". T5. Granada spindles.
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