Probably due to budget constraints, armoured ground vehicles have never been seen in Stargate. For an army like the ones owned by a System Lord (thousands of Jaffa infantrymen), it would seem logical to have some form of ground armour to fight. I found some nice sketches on Google Image for a Goa'uld hover tank :
I would assume that since it is a hovertank, it could be a much bulkier, heavy version of the Death Glider with heavy weapons, and unable to effectively fight while flying high.
And for a Tau'ri equivalent, if the Tau'ri decide to have a similar vehicle, the design of the HT-95 Levkov from Battlefield 4 (a videogame) would be perfect :
I was thinking of this for a geo-political styled hypothetical war scenario between the Free Jaffa, the Tau'ri and the Lucian Alliance after the Ori were defeated.
What do you think ?