Late doors on an early bay

[Beakey]

Hi all, is it a straight swop to fit late bay doors to an early 71 bay or do I need a conversion kit?

Trawled through heaps of posts but to no avail .... cheers in advance

 

[Harlequin]

kits from JK....
http://www.justkampers.com/shop/t2-bay-window/original-parts/body-panels/cab-door-hinge-conversion-kit-j11246.html" onclick="window.open(this.href);return false;