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| H = Hitachi removable gear carrier (pumpkin/centre section) | H = Hitachi removable gear carrier (pumpkin/centre section) | ||
| HA - H145 (145mm diameter ring gear, 5.709 inch) | HA - H145 (145mm diameter ring gear, 5.709 inch) | ||
| + | HA38 H150 3.889 ratio | ||
| HB - H150 (150mm diameter ring gear, 5.906 inch) | HB - H150 (150mm diameter ring gear, 5.906 inch) | ||
| HC - H165 (165mm diameter ring gear, 6.496 inch) | HC - H165 (165mm diameter ring gear, 6.496 inch) | ||
Revision as of 23:23, 16 March 2013
Pre-1980
B10: H145, 3.900 VB10: 4.111 (van/wagon) B20: 4.111 (ute/truck) B110: H145 3.900 VB110: H145 4.111 (van/wagon) PB110: H165 4.111 B120: H165 4.111 (ute/truck) B210 1974: H145 3.900 B210 1975-up: H150 3.700 or 3.889 PB210/GB210: H165 B310: H150 various A10: H165 various
1980-up
Axle Codes H = Hitachi removable gear carrier (pumpkin/centre section) HA - H145 (145mm diameter ring gear, 5.709 inch) HA38 H150 3.889 ratio HB - H150 (150mm diameter ring gear, 5.906 inch) HC - H165 (165mm diameter ring gear, 6.496 inch) HD - H190 (190mm diameter ring gear, 7.480 inch) HE - H190 revision HF - H190A
Axle code is on Chassis Identification plate 1980-on
Starting in mid-80s, Axle Code is on door-jamb sticker.
Factory LSD has a sticker on the back of the diff housing.
Counting
To verify the ratio in the vehicle matches the original equipment (or build tag), you may count turns of the wheel vs turns of the driveshaft. If slightly less than 4 turns of the driveshaft results in one turn of the wheels, it is a 3.9 ratio. If it takes a bit more than 4 turns, it is a 4.111 ratio.
Even better is to note the stamped numbers on the ring gear. For example, this unit is stamped 39:11
39 divided by 11 = 3.545 ratio