New or Used Posi for Rear?? - Ford Powerstroke Diesel Forum
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Old 01-04-2013, 10:28 AM
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New or Used Posi for Rear??

Hi Guys, My truck came pretty option free for a 2006 XLT. I'm tired of the one legger rear end and want to install a Posi. My question is, is it better to buy a factory used one from a salvaged truck OR buy a new Posi-trac unit? If a new posi what ones are worth it for the money? I have no plans to change the gearing.
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Old 01-06-2013, 08:09 AM
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I wouldnt put a stock limited slip in. Mine does one wheel peels alot. It seems to work offroad and on ice and snow though.
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Old 01-06-2013, 08:46 AM
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I would also not spend any money on a stock unit. Look at the TrueTracs
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Old 01-06-2013, 09:24 AM
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Quote:
Originally Posted by Metal Mulisha View Post
I wouldnt put a stock limited slip in. Mine does one wheel peels alot. It seems to work offroad and on ice and snow though.
My TrueTrac kinda does the same, one wheel peels when you are turning right, favors unloaded wheel (even tried a few e-brake clicks before going up RTI ramp). Your stock LSD has the option of having the clutches replaced, my TrueTrac has been this way since day one.

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Originally Posted by strokinpower View Post
I would also not spend any money on a stock unit. Look at the TrueTracs
If you're not paying too much for the OEM unit, I would buy a set of clutches for it while it's out, they aren't hard to change/set up. Otherwise, Detroit Locker or nothing is what I have learned the hard way.
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Old 01-06-2013, 09:31 AM
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Quote:
Originally Posted by Karls03 View Post
My TrueTrac kinda does the same, one wheel peels when you are turning right, favors unloaded wheel (even tried a few e-brake clicks before going up RTI ramp). Your stock LSD has the option of having the clutches replaced, my TrueTrac has been this way since day one.



If you're not paying too much for the OEM unit, I would buy a set of clutches for it while it's out, they aren't hard to change/set up. Otherwise, Detroit Locker or nothing is what I have learned the hard way.
I have a Detroit locker in my '69 stang, I would not expect it to be a good truck diff. If I buy a used stock limited I will put new clutch packs in it.
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Old 01-06-2013, 09:42 AM
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The short wheelbase, narrow track width, and the light weight of your '69 Mustang is why your Detroit Locker seems so aggressive. I have a Detroit Locker in a 4.56 geared 14 bolt with 38s under my mud truck and you can't tell it's there. Yes, it has been street driven in that configuration.

I know where you're coming from though, I had a Lock Right in my '67 Mustang (I mini-spooled it for the full aggression effect).
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