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There is nothing available for the stock diff. The 9.25" 3/4 ton front differential has an E-locker available for it. I'm not sure what it would take to swap to the 9.25.
Quite a bit unfortunately, I looked into that already. The two differentials have a completely different setup for mounting the diff housings to the frame/suspension. One would need a custom lift to make new brackets that hold the diff housings.
To those of you who have looked into locking the front differential, is there anything like the S-truck posi-lock cable operated system? In the S10 4x4, for example, we have the option to replace the vacuum actuated locking system with a cable inside the cab to lock both axle shafts in place. Does the 1/2 ton not have this function? We also have the Lock-rite locker too, so most go that route anyways.
I don't think the cable does what you think it does. the cable replaces the vacuum actuator which locks in the front axle but the axles together. the 8.25 doesn't have a locker avaliable for it. detroit e locker was working on something a couple year's ago but it got axed.
1996 s10 lsx conversion in progress
Yeah, the posi-lok cable only changes how the front axle engages, I had one on my 94 1/2 ton sub and it worked well. There are no posi's or lockers available for the 8.25 ifs diff. Your best bet is to get a locker out back and not worry about the front. The front diffs, and cv axles are notorious for blowing up when you put lockers in them. There just not strong enough to get used that way.
06 Silverado 2500hd ECLB - 6.0L LQ4, NV4500 4x4, 4.10s, Radix 3" pulley, Magnaflow. 285/75R16 387rwhp 461rwtq
6400# 16.098 @ 86.23 damn its heavy
08 Yamaha wr250x, fun but way too stock...