posi units and lockers

[94fiveptslow]

Anyone on here suggest anything in particular...i was thinking of the Auburn E-Locker i believe it is..is it that much more difficult to install with the switch and everything...also...are the detroit lockers such as the Trach Tech Detroit Locker from Strange Engineering very STREET friendly..EX: do they pop or get a lot of backlash constantly when they reset???


Just post up your opinions

 

[cb18201]

i got my ford posi unit rebuilt after 84k miles and it hits posi everytime now.

 

[BnGRacing]

Torsen T2R Racemaster. After I fried out my LSD I decided to pay up and put in a torsen LSD. By far this was the best mod I've done.

 

[68COUGAR]

Auburn vs. Locker

i was thinking of the Auburn E-Locker, is it that much more difficult to install with the switch and everything...also...are the detroit lockers such as the Trach Tech Detroit Locker from Strange Engineering very STREET friendly..EX: do they pop or get a lot of backlash constantly when they reset???

First get your terminology correct. There is only one Detroit Locker. The other lockers you mention, are NOT Detroit Lockers!

The "Detroit Locker" is NOT a street friendly diff. The Reason: When the Detroit Locker is ratcheting, 100% of the TQ is applied to the locked wheel. The Un-locked wheel receives NO power while ratcheting.

The other "Lockers" you mention try to soften the square tooth engagement / disengagement of the traditional "Locker", by rounding off the leading edges of the gears. Or by using weak springs, which defeats the whole purpose of a differential spring.

68COUGAR

 

[68COUGAR]

Torsen TR2

Torsen T2R Racemaster.

As good as the original Torsen (Worm - Wheel) diff. was, I honestly believed that the TR2 is a better diff. for the street.

For Road Racing, the original Torsen is MUCH BETTER!!!!!!!!!!

68COUGAR

 

[pleasehelp]

That was your 2nd and 3rd posts since 2001!!!

 

[AznStanger3v]

yeah, i dont ever remember hearing that a Detroit Locker is a street friendly assembly. The outer tire around a turn has to travel faster than the inner tire and if they are going at the same speed, goodbye gearing, goodbye traction. 100 miles after installation, youll be back at the shop

 

[68COUGAR]

Spool

The outer tire around a turn has to travel faster than the inner tire and if they are going at the same speed, goodbye gearing, goodbye traction. 100 miles after installation, youll be back at the shop

You're talking about a Spool. The Detroit Locker does differentiate, but it ratchets to do so. Basically it unlocks & the square teeth in the diff. walk over into the next tooth. During differentiation 100% of the engine TQ goes to one wheel, & the other wheel receives no power. The back & forth transfer of power makes the car difficult to handle on a road course. That is why road racers prefer a limited slip diff.

It's easier to understand if you have a pic. to look at.

68COUGAR

 

[pleasehelp]

What about the detroit truetrac?(second to last in this link) Doesn't need any clutches.

 

[68COUGAR]

Detroit True Trac

What about the detroit truetrac? Doesn't need any clutches.

The Detroit True Trac appears to be a Worm / Wheel diff. Same principle as the Torsen, different design. The True Trac certainly appears rugged enough to handle lots of TQ. If it works like the Torsen, it'll be buttery smooth!

As you pointed out, the True Trac doesn't have any clutches to wear out. All Trac Loc's regardless of size, will eventually wear out the clutch packs.

I may actually consider replacing the 9" TracLoc in my '68 Big Block Cougar, with the True Trac!.

68COUGAR

 

[pleasehelp]

So it the truetrac street friendly??

 

[68COUGAR]

Street Friendly

So it the truetrac street friendly??

Yes, it would be extremely "street friendly", as are all Worm / Wheel diff's.

68COUGAR

 

[pleasehelp]

Thanks!

 

[94fiveptslow]

First get your terminology correct. There is only one Detroit Locker. The other lockers you mention, are NOT Detroit Lockers!

The "Detroit Locker" is NOT a street friendly diff. The Reason: When the Detroit Locker is ratcheting, 100% of the TQ is applied to the locked wheel. The Un-locked wheel receives NO power while ratcheting.

The other "Lockers" you mention try to soften the square tooth engagement / disengagement of the traditional "Locker", by rounding off the leading edges of the gears. Or by using weak springs, which defeats the whole purpose of a differential spring.

68COUGAR

I appreciate some of your advice…but as far as my terminology goes….I guess Strange Engineering is also wrong... ..you might was to check page 47... http://www.strangeengineering.net/catalog/index.html ....to see the the Trach Tech Detroit Locker they are selling...hmmm...oh yeah I guess you need to call them and tell them they are wrong also while your in the mood for scrutinizing....

 

[blksn955.o]

Little known info,

You can get a t-loc out of a late F-150 with an 8.8 rear (some early 80's had a 9in.) and get that t-loc built with extra clutches the F-150 t-loc is a 31 spline unit and with some 31 spline strong axles/ guirdle will be one tough cheap rear. There are a few running deep 10's with no problems after years.

 

[FEESER 94 COBRA]

I have the Aubern pro its still in the box how street friendly is ths gonna be ?

 

[revhead347]

i got my ford posi unit rebuilt after 84k miles and it hits posi everytime now.

Forget all the jibber jabber and listen to this man. I'm cutting 1.6 short times on my original stock locker with 106,000 miles on it. There is nothing like original parts. It costs like $50 for new clutches for a stock locker, and will be more than sufficient.

On a different topic, I saw your sig, and I'm wondering why you put 1 7/8 primaires on stock heads?

Kurt

 

[94fiveptslow]

Forget all the jibber jabber and listen to this man. I'm cutting 1.6 short times on my original stock locker with 106,000 miles on it. There is nothing like original parts. It costs like $50 for new clutches for a stock locker, and will be more than sufficient.

On a different topic, I saw your sig, and I'm wondering why you put 1 7/8 primaires on stock heads?

Kurt

Ill say again there 1 3/4" to 1 7/8" step headers and i bought them for my blown 347 combo im about to embark upon...and no they dont hurt my torque...i didnt want to buy 1 5/8" which are pretty dang restrictive for the numbers i gonna be making..didnt want to buy 2 sets.

 

[revhead347]

Ill say again there 1 3/4" to 1 7/8" step headers and i bought them for my blown 347 combo im about to embark upon...and no they dont hurt my torque...i didnt want to buy 1 5/8" which are pretty dang restrictive for the numbers i gonna be making..didnt want to buy 2 sets.

I wasn't here for that. Just asking. Sounds good.

Kurt