2CarPros - Car Questions & Answers

1972 Chevrolet El Camino Repair Question


Topics covered: Rpm, Wheel, Axle.
Mileage: No information provided.

Asked on February 23, 2009

1972 Chevy El Camino determinig final gear ratio

Drive Train Axles Bearings problem
1972 Chevy El Camino V8 Two Wheel Drive Manual 90k miles

Isn't there a quick way of determining gear ratio? I sort of remember having to rotate the drive wheel and at the same time count the rotation on the drive shaft? It's been awhile since my high school days. I think the el camino came with 3:73, but I want to reduce inorder to lower my rpms @ highway speed and still keep my Richmond T-10 4spd.
Thanks!
Avatar Asked by akahoshi

Answer

Replied on February 23, 2009

That's right rotate tire once count turns of shaft.
What RPMS does it turn at 60mph?

Tiny Answered by Docfixit (expert)
18,443 answers provided