19
It should have 5.
The standard lug pattern for the Avalon is 5x114.3
21mm
21mm
12X1.50
12x1.50
106mm
21 MM
75 ft lbs
12.5mm
The Lug pattern for an '84 Toyota 4x4 is 6x5.5 The Lug pattern for an '84 Toyota 4x4 is 6x5.5
17 in wheel, should be 21mm socket