Below you'll find the tightening torques for the Chevrolet Astro 2 in both Nm and ft/lbs. The first table contains the most-used torque settings. The second table contains all torque spec values I could find.

Most-Used Torque Settings for Astro 2

Part	Description	Torque (Nm)	Torque (ft/lbs)	Remarks	Source
Wheel lug nuts	135.6	100
Oil sump plug / engine drain plug	24.4	18
Oil filter adaptor bolt	20.3	15
Caliper mounting bolts	51	38

To make sure these are the correct tightening torque values, you can use the data below to verify this is the right model.

All Torque Settings in Tables

General torque settings

Nut	Torque (Nm)	Torque (ft/lbs)	Remarks	Source
Wheel lug nuts	135.6	100
Oil sump plug / engine drain plug	24.4	18
Oil pan bolts	16	12
Oil filter adaptor bolt	20.3	15
Cylinder head bolts	20.3	15	Step 1
Intake manifold upper	5	4	Step 1
Intake manifold upper	9.9	7	Step 2
Intake manifold lower	3.1	2	Step 1
Intake manifold lower	12	9	Step 2
Intake manifold lower	15	11	Step 3
Exhaust manifold bolts	14.9	11	Step 1
Exhaust manifold bolts	29.8	22	Step 2
Caliper mounting bolts	51	38
Upper control arm shaft to Frame nuts	110	81	RWD
Lower control arm to Frame nuts	90	66	RWD
Upper ball joint to Steering knuckle nut	83	61	RWD
Lower ball joint to Steering knuckle nut	125	92	RWD
Tie rod to Relay rod nut	54	40
Steering knuckle to Tie rod end nut	47	35	RWD
Shock absorber upper attaching nut	20	15	RWD
Shock absorber lower attaching screws	25	18	RWD
Pitman arm to Steering gear nut	250	184
Connecting rod to Pitman arm nut	62	46
Hub and bearing assembly bolts	90	66
Water pump bolt	44.7	33
Stabilizer shaft link nut or bolt	17	13