Is 86 4x4 ford bronco positive differentiall?

Most 4x4 were ordered with the limited slip locking differential, but some were built with a standard differential, to tell, read the numbers on the rear axle tag (it is on one of the bolts on the differential cover if it is an 8.8 and it is on one of the carrier bolts if it is a 9") the first 3 numbers on the second line of the tag are the ratio and if it is a limited slip it has an L instead of a period in the ratio eg 3.73 is a 3.73 ratio standard differential and 3L73 is a 3.73 ratio limited slip differential.