I need to know what is the towing capacity for a 1999 1500 silverado?

call the chevy dealers in your are they will know this info also call chevy corp or gmc thay can help you out

Look in your owner's manual, or on door post info sticker.

Tow capacity for that vehicle is about 10.000 lbs (adjusted for wear and age). This number reflects max tow capacity with good tires (proper rating and good condition) with all suspension components in good used condition. The capacity of your tow hitch must also match your load and assumes proper trailer weight distribution and tongue weight.
For best results, I also recommend that you use a good quality synthetic gear lube in the differential and synthetic fluid in the transmission, as well as a trans cooler if not so equipped.

The 700 R4 is old and not worth towing for it will have problems sooner than later in the overdrive if used. If used do not use the overdrive when towing. 4500 pound capacity is the max weight

depends on engine,probably a 305,210 hp 5 to 6 k towing,350 engine,240to 260 h.p.7 to 9k towing cap.

the 1500 hd rated tow 10300 lb haul in bed 3129lb but the 4x4 tends to reduce tow capacity by about 200 to 400 lbs

depends on the hitch you got on it

the best qualify to give you a answer on that woudl
be a hitch place like UHALL tailer rental

Most smaller cars can tow between 500 and 600kgs unbraked and usually 1000kgs if braked. (trailer has brakes)

There is not stated towing capacity for your car, but 1,000 lbs is recommened max tow weight, any more and the Engine and or trans and brakes will over heat