Wheel studs ?

[70 sublime]

What year did mopar first start using left and right threads on the wheel studs ?
Cars and trucks the same ?
What year was the last year for it ?

[ACUDANUT]

1970 was the last year.  I don't know anything about trucks.

[triple_green]

I'm not sure when it started, my 67 dart, 68 charger and 69 charger all had the LH and RH studs. MY 71 Challenger did not. The A bodies are 7/16" and the B bodies 1/2" (I think).