Diff lock

Is it possible to mod a diff lock on my 93 3.0 4x4?

 

Yes.

https://www.polyperformance.com/arb-lockers-for-toyota-4runner

 

Is there another way beside the expensive one from ARB
thanks

 

Maybe. But, I wouldn't want a cheap locker, personally.

 

Spartan makes lockers for 2nd gens

 

There are so many options. All have pro/cons. What are you doing with the vehicle? Daily driver or trail toy?

 

Rock craw
No DD
But still need to drive to places for trail

 

Lincoln locker...... basically free

 

I'm more of a Miller locker kinda guy. I took my cert tests with Lincoln welders and haven't used once since. Blue is the way to go!

 

Yukon Grizzly differential carrier requires the ring gear to be swapped over and a couple of bearings if you leave your old carrier together. It behaves way better than a lunchbox i.e. Spartan but is about $600 which is less than half as much as an ARB. The Yukon works really well and is quiet. My 3.0L chirps the inside wheel on dry pavement as it gets all the torque while the outside wheel unlocks and clicks and is free to catch up and rotate more revolutions to match the respective paths that the two wheels both take. No switching, no air, it just clicks and works and has quite decent on road manners. Acts like a spool in the dirt. But unlike the Spartan which will tend to push the vehicle straight when its locked and bound up the Yukon doesn't do this at all but the drive torque is 100 percent to the inside wheel which is not quite as neutral as an open differential when cornering under acceleration. But it is nothing like the lunchbox when its locked up and bound and won't let go until it bangs.

 

In comparison, do you have any experience with detroit locker? Sounds like the Grizzly much smoother on the road

 

Steven R,
Yukon Grizzly getting the bearings pressed on.

I have never run a Detroit Locker so I cannot say how they compare. The only comparison I can attest too would be with a stock open differential and ARB's that I have had on a 1982 4X4 Hilux and a 1996 4.6HSE Range Rover. The biggest thing you will notice with both the Grizzly and the Spartan is the amount of added drive line back lash that is present at the drive shaft. This translates into more drive line slop and so the transition from coasting to loading the drive shaft at light throttle can get a bit jerky with a manual transmission when on the verge of an overrun by the drive train over the engine speed. You couple that with OBD-1 fuel injection and you will quickly understand that you need to stay away from that and thus need to be either accelerating or decelerating when cruising at 25MPH in your neighborhood.
Cheers,
Andrew

 

I watched a u toob vid on traction control by FILTHY MOTORSPORTS. It was very informative and it seems, according to the vid, the Grizzly is identical to the Eaton Detroit locker. Whether they are all identical, I don't know. But the Model he was using in the vid was.

The Detroit locker I ran in my old CJ was from the mid 90's. They came out with a new one called the detroit soft locker. My guess is maybe the soft locker transitioned into the current DL. (Unless it was a P.O.S.and was discontinued). My old school Detroit Locker didn't really make any clicking sounds, and when it let go under a load, Like in a turn, it went BOOM. The whole Jeep would pitch. Your explanation of the driveline slop and jerkiness during shifting sounds pretty spot on to Detroit Locker Characteristics. Thanks

 

That's a good video I know of it as well and was part of my investigative research into the Yukon product. I had the Spartan in my rear end for a month or two prior to the Grizzly and right after I had put it in my wife and I headed for a SONIC drive through to get some lemonade drinks and this driveway was really tight and did a 180° "U" turn in its path around the building. I got about half way around and bang it unloaded and I had less than 5 miles on the install. Scared my wife to death and she was screaming all the way home about the modifications to the 4Runner. That and the torque steer the Spartan would produce on the freeway was enough to spend the money for the Yukon Grizzly. Check out the picture above the carrier is a monster! No regrets and it works as expected in the dirt like your running a spool, but better in tight slow corners as the outside wheel can freewheel and not stop the vehicle form trying to change direction at full lock like a spool will do.