The axles I have are 6 lug like all 1/2 ton 4wd Chevy's.
The rear is a 12 bolt posi with 4.10 gears. the front is a disk brake dana 44. I dont know if it is posi or not. they came out of a running and driving 73 blazer about 1 year ago. the blazer was rusting away. I'll get some pics later. they aren't pretty but they work well.
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