Diff Dilemna! Need opinions!

I agree with Moper. I run a Detroit True-Trac, with a set of Strange SS axles (street and Strip) I have broken sh-t since putting them in, but it's not axles or posi. Like one fellow told me on a 4 spd sight, "super stock springs with adjustable snubbers have way to much axle wind-up and your going to break stuff". He told me to put the caltracs in and it will cut that way back. Automatics are alot different for all that are about to jump on me, defending there SS leaf spring set-ups. I ran low 11's on a 904 automatic for years on end with no rear suspension breakage. I have a streetable mid 12 second motor behind my 4 spd. now and have broke alot.

thanks for the info man! i called calvert last Friday and talked with them at length about their setup...he told me it obviously works best as a package...when i asked him about street driving the monos, he said most super stock spring guys like the ride better on the monos, and that they will ride fine on the street...i told him i put about 5k a year on the car and was worried they would wear and he said he would replace for free if that happened since he gurantees it wont..but this tru trac thing is something i have to look into
Here ya go. I'm running a stock/6 spring under an Eaton TruTrac 3.91 gear behind a 400+ horse 440 with a 727. No issues at all. The Eaton is a gear drive sure grip. Pulls the same on both sides. They claim good to 600 horse. The axles are Yukons. Do it once with a TruTrac.
Small Block

another tru tracker lol...question i have guys is are these tru trac units rebuildable, or are they like the auburn posi where once they break they are garbage? if so, i find that rather useless