Originally Posted by PMK
I have been trying to sort it all out also. Dave K does explain it well. Other forums have topics / posts that mention a mechanical limited slip and the electronic (brake type) utilized together is the ultimate. This lets the electronics act similar to appying the parking brake to engage the mechanical LSD.
Northwest offroad shows two styles of mechanical LSD. One is the TORSEN style like what came in Tacomas prior to the electronic LSD.
The other style is a true Detroit Locker with drive rings for each axle. From reading about these lockers, it sounds like for 4WD have an Elocker in the rear and a TORSEN front is the most versatile. It allows easy follow the line chosen steering while provide a lot of grip.
I have no hands on experience with either. I still wonder though which of the mechanical LSD shown is better and why. It sounds like the Toyota OEM TORSEN mechanical LSD have had there share of problems. Maybe aftermarket is better. Then again is the Detroit locker even stronger or more reliable?
Then you have clutch plate styles and No slip diffs that are not spools.
Thats incorrect. 2005-2008 Tacomas had two Limited Slip Differentials available from dealer, neither was Torsen like.
a. limited Slipp for factory TRD sport and Double Cab Long Bad was Hino 8 Inch Limited Slipp. It was manufactured in Hino factory in Japan and it is most heavy duty limited slip installed by Hino/Toyota. it has 8 clutch packs 4 on right axle and 4 on left axle.
b. TRD limited slipp made by Eaton, installed per request as Add ON. With 3 clutch packs installed centrally.
Hino limited slip is pretty much unbreakable, all it needs fresh oil every 12 000 miles to work and it hates Synthetic oils. That is the only problem with it.
Benefit: Unlike any other limited Slip differential it works with one tire in the air (like a locker). With 4 pinions its stronger then most lockers, its Auto so its always On, and allows speed difference between the wheels. Its made to power slower rotating wheel, instead of usual (slow the faster wheel) kind of what Lockright does.
Unfortunately Toyota decided to never sell this in North America which is stupid.