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  #1 (permalink)  
Old 12-26-2006, 03:44 PM
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locker or limited slip?

hey guy's and gals ,i have to make a choice in weather to put a Detroit locker or the true lock in a 1934 ford pick up 9'' rearend.this will be mainly on the street with some 1/4 mile runs also.this is not my truck just a friends and was told to order something,this truck also has a 4-link in it i know not good for the street but as the build go's the idea of what it will be used for changes also.i'm thinking towards the Detroit true lock rather than the locker but thought someone here might have a better idea.
may buddy is not afraid to punish the tires so we would like something that will take it if we get some good traction and not be in pieces
any advice will be greatly appreciated thanks.
need answers by morning thanks.

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Old 12-26-2006, 05:56 PM
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Have you looked at the Powertrax?

Vince
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Old 12-26-2006, 06:18 PM
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A Detroit locker will be noisy and clunk around corners. I tend to agree with 302/Z28. Go with a good quality posi unit especially if it's going to be driven primarily on the street. The Powertrax unit can handle a lot of abuse so it's a good choice.
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Old 12-26-2006, 06:19 PM
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powertrax is nice and very easy to install
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Old 12-26-2006, 08:59 PM
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I had 3 Lockrite Powertrax lockers let go. They are of a design that they will evetually wear out. They make horrible noises when pulling into parking spots at low speed. It sounded and felt as though something had just snapped ib the rearend but didnt.
This is in my 1997 L31 Vortec 350 boltons auto L35 V6 t-converter. high 14's, 2.007 60ft times.

I am running a G80 right now with 3.42's.

I have heard that the Powertrax No-Slip Traction system is a better choice.

I am looking at the Detroit Truetrac carrier. It has actual gears instead of clutches.

peace
hog
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Old 12-28-2006, 09:32 PM
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You will be a lot happier with a limited slip.
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Old 12-28-2006, 09:40 PM
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Quote:
Originally Posted by Hogg
They make horrible noises when pulling into parking spots at low speed. It sounded and felt as though something had just snapped ib the rearend but didnt.
If you keep your foot off the throttle while making sharp turns they don't clunk and pop nearly as often or as loud. I have one in my Blazer and making sharp turns under throttle sounds like something snapped and shakes the whole truck. I'm used to it now but it makes passengers jump.
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Old 12-29-2006, 12:49 AM
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Lockers can be ok in large,heavy trucks with huge tyres but they are awful in light cars like street rods. Go limited slip.
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Old 12-29-2006, 09:55 AM
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thanks thats what we are doing.i don't want to make a bunch of noise from the rearend
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Old 12-29-2006, 09:59 AM
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I just installed a detroit trutrac in my 69 camaro.
works like a locker in the straights and open rear in the tight corners.
makes no noise in the corners either.
has no parts to wear out (ie clutches or cones)
by far the best rear Ive used so far and I tried em all in the past.
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Old 12-31-2006, 12:02 AM
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just put a trutrac in my truck. bummer i have like zero miles on it or i could tell you something. i was told i didnt want a locker in the front dif. so there you go.
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Old 12-31-2006, 09:08 PM
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I went with a detroit locker in my 4-link, Nova (FAB 9") simply to make it bullet proof. The Detroits nowadays are what they call SofLoks and don't make near the noise of the old units. I don't even think you can buy the old style any longer.

I don't hear any differential noise in the Nova, but then it's an 8-71 383 with Borlas and short exhaust. In a tamer car maybe it makes come audible noise but that wouldn't ever bother me.
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