Re: gear ratio ?
most all 3 speeds during these years came with came with a 273 ratio unless it had a h d pkg. (7 leafs in rear & a 1 1/4 in rotor ) -3/4 or 1 ton .
Iwas told my 84 had a 2.56 ratio even . when the trans man had it out & counted the teeth . It is a swb & came stock with a 305 / 350 trans. Hope this helps
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