I have just chewed my second set of gears in my rear diff...its a 04 5vzfe super charged, fuel system, piggy back, fuel/timing/afr controler I have a fair amount done to the motor how ever I keep chewing through my ring and pinion due to the open diff transfering power back and forth. I think I need a lsd instead of my locker please any help would be great

 

Anyone have a way to make it strong as hell without doing a full swap? A drop in 3rd member I don't really care about getting rid of my locker....

 

So I did some digging today and found out that toyota leaves more back lash in the diff so that it will run quiet how ever this allowes the diff it self to torque causing the pinion to chew the out side edge of my gears... I'm looking at putting in some nitro gears, does anyone have a set and how they hold up with a boosted motor??? Or perhaps some knows of a different ring and pinion that is cryo/hardend that runs good. Also is there a company making a gear set other than oem that will accept a 30 spline yolk, all after market gears have a 27 spline yolk u need to swap out "yolk for the pinion gear" any good info would be help full.... thanks

 

talk to the people at Yukon gears. also if you go with a limited slip get the detroit true track. I have heard great things about these limited slips. and they are gear driven not clutch style. usually go for about 400. great deal! hope that helps

 

I've **HEARD** that using a good Dyno based gear oil is much better than a synthetic based. Sounds like you are beyond the problem of oil, but I would try it first. My fathers friend has been a Ford mechanic for 30 years and said that they started reparing diffs once they started using synthetic diff oil. Could just be coincidence but he doesn't think so.