Posi or Locker?

marine_2003 · Sep 17, 2005

Which would Be better? A Cluthch type Posi for my 8.8" or a Detroit Locker?

85_SS_302_Coupe · Sep 17, 2005

First, to bust your balls, posi rear ends are for chebbys. Traction Locs are for Fords

And unless your car is 99.9% track car, i'd go with a clutch style locker. That is, unless you can afford one of those Eaton E Lock magnetic locking rear ends....you flip a switch and the rear end locks just like a Detroit does, but otherwise works just like a clutch style locker.

marine_2003 · Sep 17, 2005

Where can i find the Auburn magnetic locking rearend?

85_SS_302_Coupe · Sep 17, 2005

To correct myself, it's made by Eaton, not Auburn.

Here http://store.summitracing.com/partdetail.asp?autofilter=1&Ntt=Eaton+E+Locker&N=0&part=ETN%2D19660%2D010&autoview=sku&Ntk=KeywordSearch but unfortunately, such cool tech toys come with a steep price.

marine_2003 · Sep 17, 2005

That is true cool toys do come at a steep price, so the next best thing would be to get the detroit locker that i was looking into, from strange engineering inc.

85_SS_302_Coupe · Sep 17, 2005

Just remember....when the rear end is locked, it doesnt like turning corners very much. Keep this in mind if you ever plan on going in any direction other than straight...also if you plan on driving in rain, gravel, grass or any kind of loose terrain.

kck6894 · Sep 17, 2005

I have a detroit in my car and I would NOT recomend one to ANYONE who drives their car on the street. I had an eaton that worked really nice on the street but after I broke it I decided I better use something a little stronger. I would love to go back to the eaton

strokedandblown · Sep 17, 2005

85_SS_302_Coupe said:
Just remember....when the rear end is locked, it doesnt like turning corners very much. Keep this in mind if you ever plan on going in any direction other than straight...also if you plan on driving in rain, gravel, grass or any kind of loose terrain.

Have you ever driven a car w/ locked rear end?

i assume no, b/c i have a spool and i drive it everywhere sharp turns 3 pt turns, its all good, no problems.

you might here a little squeeking or buckling on hot concrete but its not a problem, and when you hit the gas the car goes straight, it doesnt tourque to one side like a posi does.

anyone running a magnetic locker out there??

85_SS_302_Coupe · Sep 17, 2005

strokedandblown said:
Have you ever driven a car w/ locked rear end?

LOL, my last car was a 351W '83 with a C4, 4.56 gears and a locker, so yea i've driven one. I built the car specifically for "neighborhood" driving, because i had the car and the engine and wanted something fun to play with the imports with. With 275 tires on the back, the inner tire would scream and buck on a 90 degree turn, and in the rain going around the same corner was like driving in snow. Fun? Hell yes. Safe? Probably not. Illegal? Absolutely, that is if you get caught driving sideways on your way to Taco Bell.

Seriously, would i spend as much time posting opinions if i didnt know what i'm talking about?

Although....now that i read my previous post, the part about lose terrain doesnt quite make sense so i'll reject that one, as lose ground would actually make it easier to drive a locked rear end, unless you were driving hard and then you'd just have some sideways driving. I grew up out in the sticks where we didnt even bother with D-lockers, we just welded the differential together.

marine_2003 · Sep 17, 2005

I dont want to buy anything i cant use while driving the car on the road, while im in town working i drive my car back and forth to work. But i also want to have something that will hold up if i want to take it to the track everyweek.

85_SS_302_Coupe · Sep 17, 2005

marine_2003 said:
I dont want to buy anything i cant use while driving the car on the road, while im in town working i drive my car back and forth to work. But i also want to have something that will hold up if i want to take it to the track everyweek.

Think of it like this.... There are plenty of people, myself included, who are still using stock dif's in the rear end, and i can tell you my car hooks and goes straight as an arrow, that is unless it's fishtailing. Needless to say, if you've got a clutch diff. that's not worn out, that's really all you're going to need, since you're not building a racecar. Detroit Lockers were great back when clutch rear ends were junk, but technology has resolved the weak link and you can have a traction lock rear end that holds up to hard driving. IMO, if you're making so much power that a clutch rear end won't do the job, then you should probably have the extra cash to spend on the E-locker, if you really really neeeed a locking rear end, but don't wanna worry about chirping tires and such.

luckythirteen13 · Sep 17, 2005

http://www.ringpinion.biz/index.php/cPath/24_48_294?osCsid=bad6ed05011ab5018a46dadb423df679 this page as a couple auburn electric lockers

marine_2003 · Sep 17, 2005

What about this kit?
http://www.markwilliams.com/esell/prodlist.asp?move=next&catid=3016&frs=1&lrs=13&np=13&fp=1
Its the one on top on the right

srothfuss · Sep 17, 2005

Auburn Posi in mine! Love it!

Locker = less fun on the street!

Hissing Cobra · Sep 17, 2005

I've got a locker in mine and I wouldn't change it. During cornering, the locker will not lock unless you hit the throttle. Therefore, I coast around corners. If I do have to gas it, I do it slowly. It really is not that bad at all. After 20 minutes of driving, you will get used to the nuances that a locker brings to the table. I did it for the piece of mind of knowing that both tires will burn when I want them to. Reliability is a huge concern of mine.

marine_2003 · Sep 17, 2005

Thank you that has made up my mind

Daggar · Sep 17, 2005

My preference has always been the stock traction lock rebuilt with clutch/spacer/clutch/spacer/etc. The best way that I can describe it is that I like how it "acts" on the street. I haven't tried the Auburn or any of the other clutchless traction locks however. I did the detroit locker for a little while until the noises (it made a clicking sound) and how it acted under power in a corner made me want to swap back to the stock piece. I've not had an electric locker in a Mustang but did have one in the rear end of a 4 wheel drive truck. I definitely did its job and made the rear a solid axle. I'm not sure if I'd like to have that in a Mustang or not. I just don't know.

Blk91stang · Sep 17, 2005

How come no one mentioned the Detroit True-Trac?

kck6894 · Sep 17, 2005

Daggar said:
I did the detroit locker for a little while until the noises (it made a clicking sound) and how it acted under power in a corner made me want to swap back to the stock piece.

I assume you had a Detroit EZ Locker? My Detroit doesn't bother me under normal driving. Mine does not make noise (except when it sticks) but at slow speeds you can feel the ratcheting. When you trying to turn around in a driveway or pulling in and out of parking lots it's shakes the entire car and sometimes it makes the car buck. It's just can be a huge pain. It's done it since it was brand new. Aside from that it works great both at the track and on the street.

I had an Eaton before and it had very nice street manners. If I wasn't so hard on it at the track I would DEFINATELY still use one.

I will agree with Daggar on the factory trac lock. I know in the begining before I started really modding my car the factory trac lock worked really well.

Hissing Cobra · Sep 17, 2005

Right. There are different types of Detroit Lockers. I've got the NoSpin unit in mine. It doesn't ratchet around corners. Like kck6894, mine will shake if I'm turning slowly in a parking lot. I'll just stop and then proceed without incident. I swear that it's not that bad. I've got 11,000 miles on it since it was installed last year and I still wouldn't go with anything else.

Posi or Locker?

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