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03-28-2010, 09:51 PM
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#1 |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,319
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limited slip
So I was watching a rerun of Gearz this weekend with the project knuckle buster and Stacey was talkinjg about a limited slip from summit. I looked on summit and found something like this
http://www.summitracing.com/parts/PWT-92-0775-2605/ What do you guys think? it is about the same price as a posi unit, but looks alot easier to instal. your thoughts
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Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart  My build 2008-2016. http://m.imgur.com/a/bURrE |
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03-29-2010, 07:24 AM
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#2 |
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Registered User
Join Date: Jan 2009
Location: Richmond, VA
Posts: 53
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Re: limited slip
I have a '66 Chevy II that I'm SLOWLY building. I bought the Powertrax unit and had a guy put it in when he rebuilt the rear. Unfortunately, I can't say how well it works because the car isn't running just yet. But I love the idea.
I know a few people who have burned up multiple clutch-type limited slips. I'm hoping this lasts longer. |
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03-29-2010, 07:33 AM
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#3 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: limited slip
A clutch type posi is a way better choice. Anything north of 400hp and you will make that power trax explode. They arent the strongest thing around but they do work. They are noisey in turns and kinda rough when they engage/disengage
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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03-29-2010, 08:37 AM
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#4 |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,319
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Re: limited slip
thanks thought I could get off easy, I am nervous about putting in a posi unit. I am planning a 420 hp 383, so posi it is thanks
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Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart My build 2008-2016. http://m.imgur.com/a/bURrE |
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03-29-2010, 10:50 AM
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#5 |
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On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: limited slip
I had a powertrax in my truck (~450hp 383 and 4 speed) for about 18 months before it grenaded, and I wasn't very hard on it. I'm putting a clutch type posi in next.
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'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD |
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03-29-2010, 12:21 PM
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#6 |
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One shot, one kill.
Join Date: Dec 2007
Location: Saratoga Springs NY
Posts: 859
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Re: limited slip
Just looked at thier setup and in my humble opinion it's not up to the chore. I'm an OLD Chevy mechanic, and have over the years had to deal with "Detroit lockers". As a mechanic, I hated them because they are hard to rebuild and parts ain't cheap. From a durability standpoint, they are more than good and short of a "spool" work really well. They have the advantages of really being 2 different types of posi. Asside from the mechanical locking action they have a clutch pack. It takes quite a bit of torque to break the clutches loose before "overspin" of one wheel or the other engages the mechanical locking mechanism. I'm sure others will chime in on this one. Hope this helps. Jim
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1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shot  Jim or Paladin whichever you choose.
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03-29-2010, 01:51 PM
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#7 |
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Registered User
Join Date: Dec 2004
Location: Highland, IN
Posts: 2,319
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Re: limited slip
I am planning to install an Auburn posi unit, do not know the details, but I heard that is a good unit and they are made here in Indiana
__________________
Chris _______________________________ 1979 Chevy Stepside SPORT 2018 Chevy Silverado, 39 years apart My build 2008-2016. http://m.imgur.com/a/bURrE |
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03-29-2010, 07:03 PM
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#8 |
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Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: limited slip
IF its an auburn cone type posi You should rethink your decision. The cone type posi is not rebuildable. The cones eat into the carrier over time and wear it out. Basically the unit turns into a paperweight once they wear. The eaton clutch type is rebuildable and can also be beefed up to handle extra horsepower. Auburn also make a clutch type posi now but I havent ever used one.
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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