limited slip vs. regular rear - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 12-11-2009, 10:52 AM Thread Starter
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limited slip vs. regular rear

i had an 02 350 cc lb 4x with limited slip rear. i now have an 08 350 lb cc 4x with a regular rear. how much diference will i notice? i already miss the limited slip in the wet and the limited mud ive been in and am won dering about the snow........
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post #2 of 8 Old 12-11-2009, 10:55 AM
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There is a big difference unfortunately, but fortunately there are aftermarket limited slips that work great. Auburn limited slip and detriot truetrac are good options that retail around $700, but are worth it.

2006 F250 King Ranch
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post #3 of 8 Old 12-11-2009, 11:36 AM Thread Starter
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is that each or a pair?
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post #4 of 8 Old 12-11-2009, 11:39 AM
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Each. You can pickup the Detroit Truetac off ebay for around $550. I got mine from there and love it compared to the stock trac-lok.

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post #5 of 8 Old 12-11-2009, 11:49 AM
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The stock limited slip is JUNK don't waste any money on it, not any better than any open differential. The Auburn is not much better and won't tolerate tires any bigger or more aggresive than stock. The True Trac seems like a good idea but I've never tried one, I don't care for the gears cause it's like a AAM Chevy/Dodge L/S which don't work very good. Every truck I own gets a Detroit Locker in the rear period! The Detroit has descent street manners,reduces rotating weight and is strong than the stock L/S or Open.
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post #6 of 8 Old 12-11-2009, 11:52 AM
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Quote:
Originally Posted by powerstroker67 View Post
The stock limited slip is JUNK don't waste any money on it, not any better than any open differential. The Auburn is not much better and won't tolerate tires any bigger or more aggresive than stock. The True Trac seems like a good idea but I've never tried one, I don't care for the gears cause it's like a AAM Chevy/Dodge L/S which don't work very good. Every truck I own gets a Detroit Locker in the rear period! The Detroit has descent street manners,reduces rotating weight and is strong than the stock L/S or Open.

I've used both and both are excellent. The trutrac doesn't lock as quickly as the regular detroit (you have to get one tire spinning a little before it engages) but the street manors are much better. You can't tell the trutac is even there.

2011 6.7 Crew Cab 4x4
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post #7 of 8 Old 12-11-2009, 03:33 PM
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Does anyone know the part number for an '08?
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post #8 of 8 Old 12-28-2009, 05:02 PM
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Quote:
Originally Posted by powerstroker67 View Post
The stock limited slip is JUNK don't waste any money on it, not any better than any open differential. The Auburn is not much better and won't tolerate tires any bigger or more aggresive than stock. The True Trac seems like a good idea but I've never tried one, I don't care for the gears cause it's like a AAM Chevy/Dodge L/S which don't work very good. Every truck I own gets a Detroit Locker in the rear period! The Detroit has descent street manners,reduces rotating weight and is strong than the stock L/S or Open.
No amount of rotating weight within a differential will begin to compare to the increase in rotating weight of larger tires or wheels.

Anyway, the TrueTrac is a Torsen type design, which is very streetable and works really well for traction. It's not ideal for offroading like a locker, but for those of us not climbing rocks and ruts it's a great choice.

Dave
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