Should be on the bottom or rear of the radiator
No, you typically do not need to pull the radiator on a 1991 GMC Z71 to change the drain plug. The drain plug is usually located on the engine block, and you can access it without removing the radiator. However, ensure you have enough clearance and consider draining some coolant beforehand to avoid spills.
Bottom of engine on the oil pan.
Z71 is an off road performace package.
yes. it is the same bolt pattern
I have 1999 chevy Silverado z71 wanting to see if a 1994-95 chevy Silverado z71 bed will fit
There are many places where one can watch videos of a lifted Chevy Z71. One can watch videos of a Chevy Z71 at popular on the web sources such as YouTube and Vimeo.
YES
The only way to fix that problem is to buy a new radiator. Your old one has cracked around the fitting.
97 Chevy Z71 truck will not shift into third gear.
Chevy Z71s range in price depending on the condition of the vehicle. For a used but good condition Chevy Z71, one can expect to pay about $12,000 USD.
It is on the bottom of radiator but you will probably need to remove the two piece shroud to get at it, unless you can get it from under the truck. Sometimes its easier to remove one end of the lower rad hose.
Z71 is the "off-road" suspension package. It adds jounce bumpers, larger shocks, and skid plates.