flywheel between block and trans, your starter turns it.
You can't. The Datsun name was replaced by Nissan in 1982/83. Nissan are the parent company, Datsun where simply the brand.
In Kuwait
You can find a vacuum diagram for a 77 Datsun B210 in the car's owner's manual. You can also check with different auto stores.
Try LMCTrucks
www.partstrain.com or www.rockauto.com
All fasteners have a torque spec suggested by the manufacturer. You will find that information in the shop manual for the vehicle.
You can find parts for your 1981 Datsun 720 King cab at most auto-parts salvage stores. Many of the parts are still available from your local Nissan dealer.
rockauto.com good source
i have a sunroof the car. i have a 1981 datsun 280zx whit good motor and manual transmission. i am going to junk it. if you need it give me a call at (414)745-7123
Good luck!! There may not be a box big enough for a real car.
try NAPA AUTO PARTS