Originally Posted by big gear head
Most trucks run taller tires than cars, so I would probably go with the 3.73. The overdrive transmission will work well with that.
The '77 should have a truck 12 bolt, not the 10 bolt. If you have the 10 bolt then it must have been swapped at some time.
Never knew that! Learn something new everyday I guess. The rear tires im running are 295/50/15 DR's. The only real plans for the truck is car shows and stop light to stop light "per say". Any other opinions to be had?