8.25-inch gearbox, switchable bridge, early models. 1 - half shaft; 2 - axle shaft seal; 3 - axle shaft bearing; 4 - bridge beam; 5 - clutch gear thrust washer; 6 - clutch gear; 7 - axle shaft retaining ring; 8 - clutch; 9 - adjusting washer; 10 - bridge engagement drive; 11 - bridge beam bolt; 12 - clutch fork; 13 - inner spring of clutch fork; 14 - clutch shaft bearing; 15 - clutch shaft; 16 - gearbox housing cover bolt; 17 - gearbox housing cover; 18 - guide pin; 19 - guide pin; 20 - Bearing adjustment nut retainer; 21 - clutch shaft bearing; 22 - bearing adjustment nut; 23 - Bearing adjustment nut bushing; 24 - differential side bearing ring; 25 - differential side bearing; 26 - bolt of the driven gear of the gearbox; 27 - differential drive gear shaft; 28 - differential cup; 29 - drive gear shaft fixing bolt; 30 - differential side bearing; 31 - side bearing ring; 32 - driven gear of the reducer; 33 - side gear thrust washer; 34 - differential side gear; 35 - thrust washer of the drive gear; 36 - differential drive gear; 37 - differential drive gear; 38 - thrust washer of the drive gear; 39 - differential side gear; 40 - differential side gear holder; 41 - side gear thrust washer; 42 - Bearing adjustment nut bushing; 43 - bearing adjustment nut; 44 - Bearing adjustment nut retainer; 45 - gearbox housing bushing; 46 - gearbox housing; 47 - outer bearing of the drive gear of the reducer; 48 - gearbox outer bearing ring; 49 - oil seal; 50 - deflector; 51 - cardan joint fork; 52 - fork washer; 53 - fork mounting nut; 54 - gearbox housing bushing; 55 - axle shaft bearing; 56 - axle shaft seal; 57 - half shaft; 58 - breather; 59 - breather hose; 60 - clamp; 61 - breather hose nipple; 62 - gearbox casing drain plug; 63 - sealing washer; 64 - level plug; 65 - sealing washer; 66 - spacer for bearing of drive gear of gearbox; 67 - bearing ring of the drive gear of the reducer; 68 - bearing of the drive gear of the reducer; 69 - adjusting washer; 70 - drive gear of the gearbox.