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Discussion Starter #1
I am going to need to replace my diff this winter and have been fishing for comments on the various Posi units.
I currently have a professionally built (Drivetrain Specialists (DTS)) limited slip that grinds terribly (metal to metal) on tight turns. It has 4000 miles on it (5 years old.) Started doing it a 3 years and got worse. Yes, tried more/less friction modifyer.
What might be the problem is that it is the old style Ford Equa loc 9" (1965 P/N) that I have heard is weaker/poorly designed compared the later years Ford limited slip (67 and up). I have not abused the unit but have ~450 lbs of torque at the engine. (built 70 351C 4V).
Options:
1. Do with a Detroit Locker/Soft locker (best price I have found is $412). I like the idea of full time traction at both wheels but am hesitant at lash noise or constant clicking around turns. A little would not bother me but a majority of driving will be around town with some strip/autocross.
From previous comments on an earlyier post the "new " Locker/soft locker is much improved over original lockers to where some have noticed little or none of either.

2. Truetrac (Best price $353) A poster informed me about this system (Thanks Nedcrane). I do have some worries about durability and was wondering if anyone is running one on the street/track. Or for the extra $60 bucks should I just go with the Detroit locker/ Soft locker.

Any good recomendations on places to have the diff shipped to for set up?
Not saying that DTS did a bad job but I would hate to have it happen again (They are local though which would save me shipping)

Thanks again for any help.
 

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The urban legend that all detroit lockers make noise around corners is crap......I had one and it was quiet as a church mouse.
 

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A friend has a detroit locker and it makes a little clunking around corners. Not so bad that I wouldn't consider a detroit next time.
 

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I like my truetrac. It's quiet and locks up nice. I've been driving the car for about 9 mths now, ran it at one autocross event last sept before it got cold and snowy and am pleased so far.
Can't wait for this spring for some open track runs :biggrin:
 
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