ajmorell wrote:I'll assure that most true Detroit Lockers are full-case lockers that replace the carrier, and it doesn't necessarily have to do with the size of the axle, the Dana 70 and Dana 80 Detroits are both full case
My Dana 70 is a 4 pinion diff, 2 piece carrier, 4 bolts, and I just dumped out the stock parts and replaced them with the locker and bolted it back up again. The No-Spin Model is a KS-29. If I remember correctly and if you had a limited slip carrier then to put in a No_Spin required a new carrier. This is in an IHC 1300 series 1 ton with FA52 4:88 axle ratio front axle. The KS-15 Model is used in the RA-15 and 20 which is a Timkin or Eaton axle. The first No-Spin I ever saw, many years ago, and I still have it, was out of an International 6x6 Army truck rear rear axle, 1945 Model Year. The parts book called it a Thornton Self Locking Differential.