pretty much now, the car is only spinning the right rear when i lay it out.
the car sees 90% street duty, ocassional strip and autocross duty.

Can i get by with a locker rear end, or should i just ante up and get an auburn diff or torsen. ??

what are the pros and cons of each?

any info appreciated... also ..does anyone remember the name of that part that you can install into your rearend to make it into a posi-locker? i looked like 2 big disks and parts that replace the spider gears in the posi///

thanks
brian

 

I have a detroit "soft locker" in mine....

If I could do it all again, I would get a tru track..... gear drive limited slip....

 

Lockers are not for the street. When you are turning one wheel (the outside) spins faster then the other with a locker it cannot do that as your axles are locked together. With a Limited slip it will allow that outside wheel to spin faster while turning, but will lock when you need straight line traction.

Auburn uses a clutch type posi and was OEM equipment for F-Bodies. The clutches can overheat, and are not as good as a gear type posi. Zexel, and Eaton both make excellent gear drive LSDs. I have no experiance with the Tru-Tracs so I can't say anything about them.

 

uuhh no.. that's a spool. my locker is fairly streetable... it just makes wierd noises when I make a sharp turn too fast, and I'm not accelerating.

and it makes clicking noises when i turn... that turns a lot of heads.... "YOU HAVE A BOMB IN YOUR CAR!!" "no thats my locker"

spool = both wheels turn at the same speed.
locker = the wheels can turn at different speeds as long as the mechanism doesn't catch

uuhh I'm sure you have experience with the tru-tracks..... eaton's gear driven lsd IS the detroit truetrac

like i said before... truetrac.... get it... or if you want a locker... i'll sell you mine, and you can go out and buy me a truetrac

 

Are you telling me that a locker and a LSD are the same thing? And that the Detroit Tru-Trac is the exact same unit as an Eaton?

 

If you want the differential to last a long time, I would recommend sticking to an Auburn. Although they aren't servicable, they distribute the torque evenly to both tires evenly while providing streetable driving around turns.

The problem I have with a locker is that they are very prone to failure. Most lockers are "locked" in place with a very small toothed gear inside. What happens is as the wheel speed difference exceeds a certain value, the centrifugal acceleration will cause a key to spring out in line with this small toothed gear. So, when your locker engages it is very abrupt and you are relying soley on one small gear for the locker to continue working. A common failure is the teeth on this small gear will break and you will loose the locking effect.

The problem I have with torsens is they function very similar to an open differential. Although they are serviceable, they won't provide the same "bite" as an Auburn. If this is an autocross car I would go with the torsen but for the strip I'd stick to the Auburn.

 

hmmmm.... that's a thing to ponder..... I always heard that the detroit locker was damn near indestructible..... not as strong as a spool, but better than any lsd.....

good info

 

Everybody reacts to things differently. To some people, open headers and a 5,000 stall converter are perfectly streetable. Others (like me) would find the same combo atrocious. The locker has two big problems, in my mind. The noise and associated jerking sensation when it locks/unlocks and its' all or nothing character. This makes it good for straight line or off road use but NOT good for fast street driving, where it either acts like an open diff (unlocked) or as a spool (locked). Not good for fast driving, IMHO.

Here's my take on the various diffs.

• Spool = race car only
• Locker = off-road use, limited street
• limited slip = street and street/strip cars
• open diff = no way

I left off road racing/autocrossing as not many people here do that. But casual corner carvers should also use an LSD.

Rich

 

So lockers are not like LSDs but are not spools I get it. I would still suggest a Zexel or Eaton LSD over a locker.

 

i was looking at the power trax lock right differential. its the one that just replaces the spider gears in the diff, you dont even need to yank the carrier, just the guts get replaced. I had seen it one horsepower tv , and it looks real kewl, not too too hard to install. and seems to work great as a limited slip and a locker when you need it.

Does anyone here have this in their car, or know of anyone with one?
here is the link to one on ebay, i like it cuz you dont have to reset the carrier to have a like NEW posi...

lemme know pros cons if any.....

http://cgi.ebay.com/ebaymotors/ws/eB...3822602&rd=1,1

thanks for any info
brian

 

How bad is it on the street? and High speed manuvering like highway on ramps and back road twisties? seems kinda weird they wouldnt be good for the high speed stuff since Nascar cup cars run them on the road courses. please enlighten me, Im trying to figure out what one I want!

 

which ones are you debating between? I can give you a ride in my car at the next mtfba.org meet and you can see what a detroit "soft-locker" feels like.

 

well I road in Tims and he has a locker and it makes some noise but it didnt look like it was to awful. Im one of those guys that drives into and out of corners hard and I cant seem to figure out why cup cars run full lockers on road courses if it causes the front to push??? thats the only part that bothers me about the locker. If I dont go with a locker I was going to get a tru-trac geared limited slip. I know how they work and react.

Dan you coming out to the track tomorrow?? I think it might be time to explode a 10 bolt!!

 

Anyone??

 

well... best answers I can give you is either they aren't turning at an extreme enough angle to have one tire spinning more then the other. Or the driver is that damn good that he can control when the teeth lock the axles. usually if you are accelerating through a turn, the axles don't fight each other, it has been in my menial experience with lockers that if you accelerate through a turn, the tires don't fight each other. If you let off the gas a little bit, it pushes the front tires.