Powertrax Lock-Right -vs- No-Slip

[My65Stang]

I'm thinking of upgrading my 8" from an open diff. to a locking.

Is anyone out there using a Powertrax unit? I've read that the Lock-Right makes a clicking sound when going around corners. If this is true, how bad is it? I mean, is it worth the extra $200 to buy the No-Slip?

Is the cheaper one more for off-road trucks (who probably don't care about a little noise), and the better one for street use?

I could use some help.


Edit: I found this in the Powertrax Application Guide

What is the difference between the No-Slip Traction System and the Lock-Right Locker?
While both products offer maximum traction, full wheel differentiation, and easy installation, each product has
features and benefits that meet the needs of different customers. The No-Slip Traction System uses SynTRAC
technology and is the latest design in traction adding differentials. It provides the maximum traction of a locking
differential combined with the smooth and quiet operation of a limited-slip device. The Lock-Right Locker is our
original product line that offers extreme value in a traction-adding differential. The Lock-Right provides maximum
traction, but a light clicking noise can be heard when turning as the Lock-Right gears allow for wheel differentiation.
On some vehicles the engine noise will overcome the clicking noise.