Comment by
Red_Deer on Mar 28, 2021 2:16pm
Unbelievably 2.73 was the factory ratio for our 1981 Suburban__NOT a good combo for trailer towing__so I swapped in a 3.08 unit__AND upped the motor from 350 to a 400 small block__got much better performance AND better gas mileage towing with the later combo