[1969 GMC]

the same trak-lok and power-lok that were original options on Scouts were also original options on our trucks, as Jim noted (which have been out of production for 32 years, compared to the 24 years the IH scout has been). so are they also made of the same inferior materials?

i dont think that the materials in a limited slip have changed that much. maybe he has bad experiences with trak-loks? but it seems to support with what i have heard that the trak-lok just is not as good as the powr-lok, bottom line. trak loks only showed up in 67-72 trucks as the elusive front positraction option, and i imagine that they are well suited for front diffs. also, i have seen used dana 60 power-locks sell on this board for $125, but they most likely need rebuilt. that still sounds like a deal compared to $550 new! i am also in the need for a traction aide of some type, and i think used power lock is the way to go, cost wise at least. if i was going for a detroit, i would probably upgrade to 35 spline axleshafts first for added durability. OR, i have heard about getting the eaton ho52 axle, and putting in shortened 14 bolt 30 spline axle shafts and a 14 bolt detroit, but not sure on cost for that. or just locating a ho52 with the factory detroit and doing a direct swap. plenty of options out there.

oh, and btw, the dana 60 axles in our trucks (at least in the 8 lug 3/4 ton version) have 30 spline axleshafts. i do not know if the 6 lug 1/2 ton versions are the same or not.