LJ10/20 Lockers!!!
Posted: Wed Aug 18, 2004 11:44 am
I picked up an LJ80/SJ410 locker for jock recently, and decided to see how well it would fit into an LJ10/20 differential. It is surprisingly close to perfect! The LJ10/20 side gears fit perfectly into the grooves in the plates, with almost full contact! (I think the LJ10/20 side gears are slightly smaller, but 80-90% of the side gear is in contact with the plate)
The only issues are that the pinion shafts are longer on the SJ410 (the long shaft is about 8mm longer), so you'd have to use the stock LJ shafts, and the plates don't quite fit in where the spider gears were. The diameter is about 3mm to wide to fit in, and the plates cannot be shaved down as the pins/springs are too close to the edge. The opening in the diff is tapered, so once in there, I think the plates would have enough room, thus I "THINK" one could bore out the opening to get the plates in. The only other issue would be the thrust washers and spacers, you may need to play around with them if the height is not right, but I think if anything you'd just need thicker washers.
In short, I think this is doable, though it hasn't been tested. Since I've got this diff siting in my garage that is missing a spider gear, I think I'll try to modify it to hold a locker, and see if it works. I figure the worst that can happen is that it'll blow up and I'll have to put the stock pig back in, and possibly replace an axle shaft or two (which I also have spares)
Stay tuned...
The only issues are that the pinion shafts are longer on the SJ410 (the long shaft is about 8mm longer), so you'd have to use the stock LJ shafts, and the plates don't quite fit in where the spider gears were. The diameter is about 3mm to wide to fit in, and the plates cannot be shaved down as the pins/springs are too close to the edge. The opening in the diff is tapered, so once in there, I think the plates would have enough room, thus I "THINK" one could bore out the opening to get the plates in. The only other issue would be the thrust washers and spacers, you may need to play around with them if the height is not right, but I think if anything you'd just need thicker washers.
In short, I think this is doable, though it hasn't been tested. Since I've got this diff siting in my garage that is missing a spider gear, I think I'll try to modify it to hold a locker, and see if it works. I figure the worst that can happen is that it'll blow up and I'll have to put the stock pig back in, and possibly replace an axle shaft or two (which I also have spares)
Stay tuned...