1.98 Rear End?

Charrlie_S said
To check the ratio of non sure grip. Jack up one wheel, mark the wheel and drive shaft. Rotate the wheel TWO revolutions, and count driveshaft turns.
How did you determine 1.98, I have never been able to get that acurate? If that is really correct, it looks like you have a 3.91 gear. That ratio was available but they are relativly rare in a factory installed situation.

Charlie's right. That's the way to do it and is easier than jacking up and getting a friend to spin the other wheel and another friend to count the driveshaft rotations. I agree it sounds like you have some good hot rodding 3.91 gears.