Green’s Dictionary of Slang

prod n.1

[var. on prad n. (1)]

1. (UK Und.) a cart, a wagon, a coach.

[US]Matsell Vocabulum.
[UK]Worcs. Chron. 12 Nov. 4/1: We have just touched for a rattling stake of sugar (i.e. a large stake of money) at Brum of a titman while he was getting on his prod.

2. (Aus.) a horse.

[Aus] E. Kinglake Australian at Home 119: The contemptuous terms...have led Mr. Newcome to suppose that his mount is most likely the quietest old ‘prod’ on the place .
[UK] G. Elson in Academy 4 Aug. 91/1: The horse was a prod, the cart a drag, rain was parney, a field a puv, .