Is there anyone out there who's dropped a rear LSD in an 80? Which kind (like the Auburn, or like the Japanese one similar to TRD)? Was install technically difficult? How does it work off road? Pavement manners? And what did you do for your front diff? I read a 15-yr old thread on this site about LSDs but .... it's a 15 yr old thread (and it was mostly about lockers LOL). Thanks!
80 series and a limited slip differential (1 Viewer)
- Thread starter fatrap
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I'll go ahead and ask (because someone is going to).
Why your interest in a LSD vs. a locker?
Snow, Ice, slippery/off camber driving conditions?
Why your interest in a LSD vs. a locker?
Snow, Ice, slippery/off camber driving conditions?
To partially help answer your question, my JDM 80 came with a factory rear LSD and CDL. I've yet to experience an issue on pavement or off road, with terrain including sand, rocks, gravel, dirt, etc.
The only time I got stuck was when I intentionally went through an obstacle consisting of a fairly deep amount of clay-ish mud, just to limit test a bit while other vehicles were with me for recoveries. However, I was dragging both diffs in the clay, so I can't fault the LSD.
Edit: front diff is open, at least for now.
The only time I got stuck was when I intentionally went through an obstacle consisting of a fairly deep amount of clay-ish mud, just to limit test a bit while other vehicles were with me for recoveries. However, I was dragging both diffs in the clay, so I can't fault the LSD.
Edit: front diff is open, at least for now.
Most Aussie spec 80s came with factory LSD. I can't say I've ever really felt mine working and suspect most are more slip than limited these days. TBH, I'll replace it with an e-locker if it ever needs to come apart.
My thoughts too. I plan to replace my lsd with a lokka
A LSD is good in a lot of cases. I liked having one when moving over gravel and other loose surfaces at moderate speeds. For extreme situations at very slow speeds, a locker has an advantage, but a LSD is useful for general cases when a locker is usually off, like a bit of slip when taking off on a slippery surface. This is particularly useful if you're running a part-time model, when slip from a single drive wheel can see you skidding in place.
I liked the LSD behaviour in my LN106 Hilux, and I liked it in my 80 while it worked. Unfortunately, Toyota made a pretty weak LSD. Simply put - it's fine when it works, but it quickly stops doing much of anything over time. In my 80, I'm preparing to replace my worn out LSD with a Harrop ELocker. If my 80 never really saw offroad use though, the LSD would be preferable over a locker IMO. A locker gives more control, but a LSD is more convenient.
I liked the LSD behaviour in my LN106 Hilux, and I liked it in my 80 while it worked. Unfortunately, Toyota made a pretty weak LSD. Simply put - it's fine when it works, but it quickly stops doing much of anything over time. In my 80, I'm preparing to replace my worn out LSD with a Harrop ELocker. If my 80 never really saw offroad use though, the LSD would be preferable over a locker IMO. A locker gives more control, but a LSD is more convenient.
- Thread starter
- #7
How long did that LSD last for you, in miles?
The OE 80 series LSD is useless in factory form, you can change the clutch order for more bite, or turn them into a quasi locker with extra shims, but there is downsides to both. Clutch order change turns the oil to cutting paste, so you need to change it often, the extra shims mod, means it's tight enough to be dangerous on slippery roads and you get funny looks when it squeals the inside tyre on painted concrete, service stations forecourts, shopping center carparks etc. I gave up and went TJM locker.
Why Toyota couldn't copy Nissan's LSD, my 300,000k Patrol, never touched LSD still spins both whenever I want it to, which is why my latest Cruiser build is getting Patrol axles.
Why Toyota couldn't copy Nissan's LSD, my 300,000k Patrol, never touched LSD still spins both whenever I want it to, which is why my latest Cruiser build is getting Patrol axles.
Im going to be the one and say it... an LSD is garbage, this is old school tech with limited capabilities off road and not worth the price verses a locker.
The clutches wear out and your back in there...I've had power-locks, trac-locks and limited slips in Ford sterling rear diff and all garb, they dont work when you need them the most because they are designed to slip under pressure...total waste of money for what I've experienced....
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- #10
LSD = great. Every diff has pros and cons. You like your locker, fine. But that's not what I asked about in the thread. 2nd best 4wd I had was a bronco with LSD on both axles. It never got stuck. And the Ford LSD (which is 2nd rate quality) lasted 129k in the front and over 100K in the rear. Why? Because I took care of it. If yours didn't last perhaps it's a maintenance problem. Sometimes when you're rolling over certain terrains, one tire has a longer path than the other. LSD will allow the tires to each move at diff speeds and thus not spin under force. Lockers can't do that, ever. Everything is +/- and it's about accepting costs to get the benes you want. I want an LSD. Go find another thread to whine.
- Thread starter
- #11
Thx for the info. The LSDs I can buy are Auburn and Toyota. The last Auburn I bought was great. This is the first negative review I've heard of the Toyota LSD. Thx.
Dirt Ferguson
SILVER Star
Wasn’t the VC an LSD?
Dirt Ferguson
SILVER Star
Viscous Coupler
Yes a liquid version of limited slip with some key differences.
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brian
SILVER Star
It acts like an lsd...but its a viscous coupler....no clutchs, just fluid.
- Thread starter
- #17
Oh. No. A VC is a device that senses slippage and engages 4WD. It's a component found between axles. A LSD is essentially a locked diff that is held by clutch plates rather than steel cogs, allowing it to slip when pressure is applied (turning). A VC engages 4WD and a LDS "disengages" it, kinda.
I've had the Power Lock in a couple of Ford vehicles (one a 1969 bronco, front and rear) and they were PLENTY positive and long lasting. Strong enough to twist the splines on an axle shaft.
Toyota LSD's suck IMO. But not all LSD's do.....I agree with you.
a buddy of mine had the toyota LSD and it was not much better than an open diff...I've had the Power Lock in a couple of Ford vehicles (one a 1969 bronco, front and rear) and they were PLENTY positive and long lasting. Strong enough to twist the splines on an axle shaft.
Toyota LSD's suck IMO. But not all LSD's do.....I agree with you.
I'll throw in that my old '77 Bronco had an LSD out back and it performed great where used which was typically mud, sand and wet with ice/snow thrown in a few times. It never saw rocks or crawling. I'm not an expert on LSDs but that rig was a hoot and never had any issues keeping going (never stuck it and probably should have) or needing diff work in my years of ownership.
Just wanted to throw out that they have their place in my experience and I think they are particularly nice in the rear of a part time rig that has a light rear end and may lose traction on wet pavement/etc. From what I've heard (no experience) I would avoid the Toyota LSD or at least do more research on it like you are.
Just wanted to throw out that they have their place in my experience and I think they are particularly nice in the rear of a part time rig that has a light rear end and may lose traction on wet pavement/etc. From what I've heard (no experience) I would avoid the Toyota LSD or at least do more research on it like you are.
