This complete crown wheel and pinion conversion kit consists of all the major parts needed to convert your TD or TF to the MGA crown wheel & pinion. It should be purchased in addition to the TD-TF crown wheel & pinion interchanges manual (part no. 212-350) which offers a step-by-step guide to converting the rear axle to accept MGA or ZA-ZB crown wheel & pinion. The kit does not include parts for a normal rebuild that may be required such as seals and carrier bearings; these will need to be purchased separately. The kit includes crown wheel & pinion, spacer, pinion bearings and nut for CW&P.