I'm not sure what you mean by "none slip diff". If it doesn't slip it's not a differential! If you want a spool or a mini-spool to replace your diff, these are available from 4WD specialists. Note that spools solidly lock the axles together, which makes the car difficult to drive on the street and also accelerates tyre wear.
The front diff in late-model Hilux 4WD's (aka Tacoma? Tundra? Something like that) is the same type as the diff used in the Mk2 Supra. That means you have access to a wide range of LSD's, spools and even air lockers.
Something you might try doing, since you're new: at the top of the screen is a search function. By using this, you'll find that several forum members have been discussing replacing their differentials with a Toyota True-Trac unit - or changing their rear end gear ratios.
I just typed the word "differential" into the search by keyword box and 28 results came up. Why not try reading some of the other discussions first before asking a question that has likely been answered already?