I've been wheelin' my 85 Xtra-cab since '97 with open diffs all over the place just for the challenge and enjoyment of real skills. My old square-body Chev 3/4 ton had a detroit rear and a Tru-trac front, loved the True-trac. Had the True-trac first and it got me through some serious trails. When I finally Munched my stock Toy diffs I put a Tru-trac in the front and a Grizzly locker in the back. I was disappointed in the Tru-trac at first. I was using some super slicky-juice in the diff to keep the gears happy, wouldn't bind internally properly? Flushed all that out after I remembered I only used off-the-shelf gear oil in my Chev with NO problems over 120k and it worked like a champ. I've since switched out to off-the-shelf for my Tru-trac and it's working Tits! Most people that give Tru-tracs a bad name either haven't used one, used the wrong gear oil in them or expected them to be a true locker. They are and always have been just a Damn Good Limited Slip. The one thing that these auto-locker fans haven't told you is that it's better to have your diffs open when Side-hilling ( driving at an angle to the rise of the hill ). Just my 4 cents.
