# High HP/TQ rear diff options?

**URL:** <https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260>\
**Category:** NYSpeed Automotive\
**Created:** [March 10, 2009, 3:11pm UTC](https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260 "2009-03-10T15:11:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Justin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justin/32/7459_2.png) [@Justin](https://forums.speedlife.net/u/Justin)\
**Post date:** [March 10, 2009, 3:11pm UTC](https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260/1 "2009-03-10T15:11:45Z")

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I am looking to replace the open diff in my truck. It makes about 400WHP 900WTQ, with an open diff it can be rather useless at anything below 20mph dry or 60mph wet. I want a good limited slip or locker, but I know there are other options out there. The truck has a GM Corporate 14bolt and I’m happy with my gears, just need traction to both wheels. What do most of the high HP guys use, standard clutch type diffs, torsion, viscus, locker, ect?

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**Author:** ![snowracer101](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@snowracer101](https://forums.speedlife.net/u/snowracer101)\
**Post date:** [March 10, 2009, 3:29pm UTC](https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260/2 "2009-03-10T15:29:36Z")

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[http://www.eaton.com/EatonCom/ProductsServices/PerformanceProducts/Products/Differentials/DetroitLocker/index.htm](http://www.eaton.com/EatonCom/ProductsServices/PerformanceProducts/Products/Differentials/DetroitLocker/index.htm)

/thread

I feel your pain, i had a cummins dodge with an open rear dif…it sucked.

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**Author:** ![38stang](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/38stang/32/7479_2.png) [@38stang](https://forums.speedlife.net/u/38stang)\
**Post date:** [March 10, 2009, 4:07pm UTC](https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260/3 "2009-03-10T16:07:43Z")

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Detroit TruTrac

/thread

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**Author:** ![paulysplitx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/paulysplitx/32/7320_2.png) [@paulysplitx](https://forums.speedlife.net/u/paulysplitx)\
**Post date:** [March 10, 2009, 5:19pm UTC](https://forums.speedlife.net/t/high-hp-tq-rear-diff-options/64260/4 "2009-03-10T17:19:10Z")

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I have an open diff in my truck and it sucks. I looked into a locker but there pretty expensive and I would have no idea how to install one.