This set is designed for the Hotchkiss (based) kits of Bronco (1:35). If you do not want or need new bogies, this sets will give you just new road wheels, new sprockets and idlers wheels as well as return rollers and a spare road wheel. Finally a late engine hatch is included.
(Assembly) instructions can be found here: http://www.shapeways.com/forum/index.php?t=msg&th=10945
14.478 w x
5.002 d x
5.7 w x
1.969 d x