"why ya think so low a price? Lotta housing . is that low pinion ?"
it's the 10 lug 70 high pinion. gear sets are limited.
*70-High Pinion (unkown offset, 2000ish+ Kodiak/Top Kick K4500/K5500 fronts) 10 lug high pinion 70, with 1550 joints (a 60 uses 1480) 5.13 gears are the only ones available for these axles.