Land Rover Axle Serial Numbers

For those that are not familiar with the unit, this is an additional reduction unit fitted to the LT 230, which bolts onto the Power Take Off (PTO) flange.By installing the Underdrive we have created a four range transfer case, in addition to the stock high /low we have an intermediate range and a super low range. Typically the ratios could be 1.2/1.4 high, 2.69 intermediate, 3.32 stock low, 8.93 super low. The intermediate range is a useful gear split between stock high and stock lowHigh and Low ratio will remain unchanged but when selected the underdrive will give an additional 2.69 reduction, this makes a low, low ratio of 8.93 (3.321 x 2.69). This gives the best of both worlds, high stays the same for road use, you have stock low for running about between sections and you have underdrive low for crawling over obstacles or winching.The unit will only be supplied in the 26 tooth, suffix C onwards input gear format, if you have a 28 or 38 tooth input gear fitted you will also need to change the intermediate and the high range output gear at an additional cost of $300. To find out if you currently have a 26/28/38 tooth input gear please refer to our fitting instructions.

The LT 230 was fitted to all 5 speed Defenders, all Discos and the RR Classic upto 1988. The serial number will be stamped in one of 2 possible places, either on the bottom left of the main casing or on the earlier vehicles right at the bottom of the left hand side face of the main casing obscured by the exhaust pipe in which case you will need a knife (to scrape the muck off) and a mirror.

Land Rover Axle Serial Numbers 1

Salisbury Axle Codes

You are looking for Eg. '28D123456E, we are interested in the first two and the last, i.e. We call this a '28E'.