Torque wrench!

I have a 150 lbft 1/2" drive click type that's good for 90% of what I do. The single digit stuff (e.g., tranny pan, vacuum pump) I do by feel. You can borrow a beefier torque wrench if you need more than 150 lbft.

I bought a second sub-$20 Harbor Freight torque wrench just for the wheels.

Sixto
87 300D