Originally Posted by 
JDNSW
				 
			Wider tyres - 
Series Landrovers have long travel springs and no sway bar front or rear to ensure good articulation offroad. Without suspension modifications, I seriously doubt they will improve the "tippy" effect of carrying the camper.
Remember that you have no power steering! And wider tyres will also probably require adjust ment of the steering stops to prevent the tyres rubbing against the chassis, increasing the already pretty dismal turning circle.
Wider tyres are likely to mean new wheels, and while the stud pattern is the same as Defenders, few wheels designed for them will fit over the Series hubs, and some are not compatible with drum brakes.
Steering play:- carefully check where it is; steering box (unlikely), pitman arm on steering box (possible); tie rod ends (most likely); steering relay, including movement on splines top and bottom, unit loose in chassis (possible); steering arm loose on swivel housing (unlikely); swivel bushes (likely); *Spring bushes (likely); broken spring leaf (unlikely); wheel bearings (unlikely); loose wheel nuts (it happens!); loose U-bolts (possible). From * check rear as well! 
Wheel alignment;- The only adjustment is toe in. Misalignment will also be caused by loose swivels or wheel bearings or a bent front axle housing, or sagged or broken springs, all possible.