If a stock engine and not towing much weight you may want to consider one of two things.

Use the A500/42-44RH so you get the 2.7 first gear with that 3.54 rear.
Or move up to a 3.7 or 4.1 rear with the A518/46RH.

I have an extended cab 93 diesel with 3.54 rear and 47 w/o lockup - it can haul 9000+ lbs but it labors from a standstill and I have to stay out of overdrive up long grades or get a good running start.

I'm converting the trans to lockup this spring but moving to a 3.7 or 4.1 axle so I can carry more weight and get away from the light a little easier and leave it in overdrive.