[layback40]

The kit numbers apply irrespective of country... but not irrespective of vehicle or year. So not every 'NV3550 rebuild kit' fits every NV3550 in a specific year (e.g. there are 2 kits listed for year 2000). Variations are:
* Synced or non-synced reverse
* 30mm or 33mm OD (outside diameter) cluster journal bearings
* 1-part or 3-part syncos for 1st+2nd gears.

Note that the 'rebuild kits' include the 'small parts kit' so no need to order that in addition.

Kits made by Mopar, by Crown and by Getrag. Crown and Mopar kits are more likely to fit, since made specifically for Jeeps (although not for the TD) but Getrag is by far the cheapest. Cheapest supplier of Getrag kits I found was Cobratransmission.com, but AmericanPowerTrainWarehouse.com knew more and advised correctly.

Since previous post, I ordered correct kit for my mid-2000-built XJ 2.5TD (kit BK235FWS) and had the box rebuilt and about to fit (Mudmonster, you were correct....)

Getrag rebuild kit numbers & fitment:

BK235B, 98 & up, Non Synchronized Reverse
BK235C, 97 & up, synced Reverse (1997-Up) (Cluster Journals 30mm OD
BK235E, 00 & up, synced Reverse (2000-Up) (Cluster Journals 33mm OD)
BK235DWS 98 & up, Non synced Reverse (3 piece 1-2 Synchro, 30mm OD)
BK235CWS, 94 & up, synced Reverse (1 piece 1-2 Synchro, 30mm OD)
BK235GWS, 97 & up, synced Reverse (3 piece 1-2 Synchro, 30mm OD)
BK235FWS, 00 & up, synced Reverse, 3 piece 1-2 Synchro, 33mm OD)

Apologies if teaching grandmother eggs etc... I just went round the loop a bit on this to avoid paying Crown/Mopar parts. My advice is email AmericanPowerTrainWareHouse with your model/VIN.