They're fine, no problem. Here is some good info from the 4skinner project you may want to read. Im not sure this corresponse to you, because Im not up on the whole Taco and E-locker thing but it may help.
Now onto the other news... I spent a few days figuring out the problem a lot of people are having with breaking elocker side gears. I have heard of this happening about 10 times, all on minor climbs and sometimes in 2wd. Heres some background
http://pirate4x4.com/forum/showthread.php?t=806250
http://gearinstalls.com/elockerbroken.htm
The elocker rear 3rds when retrofitted into an early pickup or 4runner leaf sprung housing are lacking between 7 and 8mm of spline engagment into the side gears of the diff, due to a narrower center inside of the diff(apparently to accomodate the elocker mechanism). Most people running this combination are not having problems, But a few have broken side gears. The real probem exists when you are using a coil sprung 4runner housing as these are 7mm wider on each side(axle and housing), 14mm total, and then use an aftermarket axle shaft designed for a leaf sprung ifs width housing(all aftermarket axles I have seen are designed for leaf sprung ifs housings). You are lacking 14-15mm of engagment on each side, all of the force is transferred to the weakest part of the side gear and BANG! The good news is, since the coil sprung axle shafts are 7mm's longer to accomodate the 7mm wider housing, we have a near perfect solution.
SO:
Leaf sprung ifs housing, retrofitted elocker = weak link
Coil sprung housing, coil sprung shafts = weak link
Coil sprung housing with leaf sprung shafts = BANG!
BUT
leaf sprung housing with coil sprung shafts = full spline egagment within 1mm and one less thing to worry about.
I did all measurments on a TG elocker housing, which you'd think they would have designed to correct this problem(since they sell shafts for it and all). I used 86 backing plates with 93 shafts and some new bearings and seals from marlin pressed on with a home made tool to verify the engagment.
With the third out of the housing and both 86 shafts installed, the gap between the axles measured 42.79mm. With the coil sprung 93 shafts the same measurement was 28.84mm. Save yourself a massive headache and swap axle shafts when retrofitting an elocker to an early housing. Its a paint in the a hole, but its not that much more work if you need new bearings anways and build one of these http://www.4x4wire.com/toyota/maintenance/rear_axle/wheel_bearing/
