Chevy S-10 rear end

[Mallard]

I am using a 1990 chevy S-10 rear end. How do I determine what gear ratio is in it so I can get the speedo corrected for a TH-350 tranny ?

 

[Mallard]

Don't shoot me - I posted this under suspension instead of driveline... Sorry

 

[EX JUNK]

Count the teeth on the ring gear and count the teeth on the pinion. Then divide the number of teeth on the ring gear by the number of teeth on the pinion. The result is the gear ratio.

 

[RPM]

If you pull the cover the gear count will be stamped into the ring gear....41-10, 41 teeth on the ring and 10 on the pinion. A 4.10 gear set.