so against my better thought process I am buying some 4.10s on friday. Now I want posi.. so need cheap but guaranteed, not my lim slip bullshit. I want to do posi but it seems like a locker would be cheaper. So any suggestions which to go with and companys plz let me know, thanks guys.

 

Lockers are a lil cheaper, but IMO i would go with a eaton posi unit. Lockers don't always lock. I have heard bad things about lockers and nothing bad on a eaton unit.

John

 

I have a Eaton LSD, i love it. no problems...

Several of the guys on here use and like the TruTrac.....

I dont think you could go wrong with either of these.. and they are a reasonable price..

 

eaton posi all the way, i love mine, especially in slippery conditions. make sure you get a good quality ring and pinion however. i have heard a lot of people say that the factory ones are good. the shop that installed my gears put in some cheapo gears and it only took 30 miles before the pinion ate the teeth on the ring gear and had to be replaced. Richmonds no, and i'm very pleased, no extra noise either.

 

Locker for off-road or dedicated drag racing, Limited slip for street manners. Lockers don't tend to like to corner as well

 

What is the difference between a eaton posi and a read locking diff? Is that just Eaton's technology that locks one axle while the other can spin or what?

_----I just called and gave them the last 8 of my vin and i was told I have a locking rear diff with a 3.73 gear ratio. The tech who looked at it said it was an eaton so I guess if eaton makes them for gm what exactly is it? An eaton posi which is eatons way of saying its a locking rear diff?

 

BigD50, search for G80.

 

Not true. The opposite is in-fact true, unless the locker is broken, it will ALWAYS lock under power. The Detroit locker was great in my old off-road truck. I could be climbing rocks with one wheel completely off the ground and still keep going since there was equal power being sent to both wheels.

Right on!
With a locker one tire will either drag or spin in a turn with your foot on the gas, depending on how much your foot is into the go peddle. Personally I like the design of the Tru-trac the best for a limited slip with no parts to wear out. Plenty of people are happy with the Eaton unit as well.

 

the factory limited slip carrier is the G80. you can find the code in the glove box if you have it. it is a unit made by eaton but not the same one as were talking about. some think of the g80 as a ticking time bomb.

detroit tru-trac or eaton lsd is what your looking for.

 

what do u recomend for a drag truck, detroit tru-trac or eaton lsd? or 12 bolt