You can refer to your user manual to ID the rear end gear ration in 80 Chevy pickup.
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.
3.42
Keep it tuned, add an aftermarket air filter such as K&N, change the rear diff gear ratio,
3.08
The rear gear ratio of a 1989 Chevy Cheyenne truck is between 2.73 and 4.56. This is the number of times the drive shaft rotates in relation to the tires.
The stock gear ratio for a 1995 Chevy Blazer is 3.73. This provides a good balance of fuel economy and power to the rear wheels.
4:11 gear ratio
If your asking about the gear ratio, Then write the VIN # down and call a Chevy dealer and ask for parts. Then ask the parts man if he'll tell you the gear ratio and that you have the VIN# on you truck. He'll tell you what the gear ratio is from the factory.
If it has stock-type tires, a 3.08 should work good for economy, and a 3.50 for power.
I have 89 Chevy extended cab pickup 350ci 700r trans i would like to know the rearend gear ratio and if 89 3/4 ton rear would help tow 6500# camper have replaced leafs with 3/4 springs seems original rear geared to high trans gets hot
i believe it would be 3.11
Same as the rear.