This puller is for all Early Post War RR/B's up to and including Clouds.  This pulls the rear axle drive flange from the front of the differential housing which is necessary if you want to fit a modern lip seal in place of the original wool washer - or for any other repairs you need to make.

Here is an link to an excellent article by Norman Geeson with great information on updating the rear pinion seal on EPW's and Clouds:

http://www.kda132.com/wp-content/uploads/2018/04/Pinion-Oil-Seal.pdf

Made to order.