Will a 2006 TJ with a 2.4 L engine and a 6 speed transmission handle a 78" snow plow or should I be looking for another vehicle?

 

depends on how your going to use it, it probably wont push a lot of deep or heavy snow long distances, a vehicle with a longer wheel base helps as you can add weight in the back for traction... helps keep the traction...

if its for personal plowing id use the TJ... but commercially id totally be looking at something with a longer wheel base.