What diameter tires are you running? Do you want... Highway Driving, Good Fuel Economy? Daily Driver, Best Overall Performance? Most Power and Towing, Reduced Fuel Economy? All these questions need answered first, then you can make a good choice.
You can refer to your user manual to ID the rear end gear ration in 80 Chevy pickup.
Supply the vehicle identification number to the nearest dealer and he/she can tell you what ratio you have.
Need to know what size engine it has to answer correctly.
If it has stock-type tires, a 3.08 should work good for economy, and a 3.50 for power.
It depends on the gear ratio of the rear ends. You can find this out in the glove compartment of your truck. It should tell you there. Hope this helps you out.
largely depends on axle ratio
3.08 makes a good ratio for economy. 3.55 for more power when towing.
What is the gear ratio for a 1985 CHEVROLET K10 pickup
Keep it tuned, add an aftermarket air filter such as K&N, change the rear diff gear ratio,
The recommended quick ratio may be 1 to 1 although care needs to be taken
Count the # of teeth on the ring gear. Now count the # of teeth on the pinion gear. Now divide the small # into the big # and that will be your gear ratio.
the stock Toyota gear ratio is 4.11