Best locker or LSD for autocross

[Slick68]

OK, I discovered this weekend that my "modified" Gov-lock works great at take-off and left hand turns, but won't engage on right handers, and turns into a one-wheel bandit. I knew it wasn't work great for this anyway, but hoped it work a little better. lol I'm inthe process of building another rearend with proper gears and all anyway, so I wanted to see what you guys were running for lockers or LSDs. I've been leaning towards the Eaton, but thinking about upgrading it to 800lb. springs and kevlar clutches.



BTW, this is in a 68 Chevy truck with a stock style 12 bolt.

[SLO_Z28]

Eaton clutch type posi setup right is the best ticket in town.

[Randy67]

Eaton clutch is a good choice. I am running a Eaton Trutrac (torson style) in my Camaro and like it as well.

[Bryce]

I like my detroit locker. Very predictable.

[TheJDMan]

The first center section I had in Dust Off was a locker and it was so harsh I had to remove it after only about 500 miles. It would work OK with power applied but coasting down to a corner it would pop and snap and cause the car to not want to turn much like a spool. I now have a clutch style carrier and I like it MUCH better.

[AmKenpo1]

The clutch type units have been a smooth and reliable differential for many years, limited though by clutch wear. The new crop of Helical gear (torsen style) differentials are gaining in popularity due to their smooth transition and strength. Eatons Truetrac unit is a very capable diff., other manufactures offer similar units that work just as well. Strange is currently offering a Helical gear diff. that uses 6 gears per side versus the 3 gears per side found in some of the the other units. Increasing the number of gears spreads the forces out over more area and allows it to handle more power. Unfortunately Strange currently only has them available for the Dana/S-60 and 9" in 35 Spline. We are working on more. 12 Bolt and 8.8 units are in the works.
Lockers are certainly the top rung of the differential ladder in terms of strength, they tend to be rough and clunky when your trying to transition through a turn. I hope this all helps.

Wil.

[Slick68]

Thanks for the advice, guys. I talked to a guy at Randy's Ring and Pinion a few days ago. He said the Eaton clutch style would work good, but recommended the TruTrac. He said the worm gear style is very popular with road racers and there's no clutches to wear out.

I'm leaning more toward the TruTrac, but it's still hard to get my attention away from the Eaton, since I know more about it.