I've had the Powertrax No-Slip for two days now and am very pleased with the results. The only downsides are that it is a little pricey at around $400 and not as strong as a full carrier replacement locker. However, since it is a drop in, it is a lot easier and quicker to install. The No-Slip is a newer version of the Lock-Right and is said to operate a little smoother and quieter. I've never ridden in a lock-right equipped vehicle, but I do know that my No-Slip is extremely smooth and quiet. I can only hear the faintest knock as it disengages when turning, and you would never hear it unless you were listening for it. Also, on the street I really can't tell its even there. I can still tear around corners without it chattering or chirping tires. When the unit does lock, it is very positive. You would have to be really hung up to get a tire to spin. Even though it is not a full carrier replacement, it is still a very strong locker. There was an article in Peterson's not to long ago on it, and they were also pleased with it. I'd recommend one to anyone who sees alot of street along with trails. I have exactly the same tire and gear setup as you do and am not worried about any breakage. I think some of the other lockers are a little bit of overkill for what you have. If you had large tires and a bigger engine it would be a different story. Let me know if you have any questions.
'92 Chevy S10 2WD