Ring and pinion recommendation??

[Tom Kirkham]

Undy,

I am a little confused. Why do you say that you have too much gear? 3.73 x .64 / .82 gives you an equivalent rear end ratio of 2.91 with a .82 o.d. transmission. I would think that if you are running a tire that has close to a 28 inch diameter that you should actually be pretty close. Any less gear and 5th gear will become more unusable. What size tires are you running? Are you sure you didn't get the .82 overdrive? If you can give me your tire size, RPM and speed in 5th gear I can tell you what overdrive ratio you have.

[undy]

Originally Posted by Tom Kirkham

Undy,

I am a little confused. Why do you say that you have too much gear? 3.73 x .64 / .82 gives you an equivalent rear end ratio of 2.91 with a .82 o.d. transmission. I would think that if you are running a tire that has close to a 28 inch diameter that you should actually be pretty close. Any less gear and 5th gear will become more unusable. What size tires are you running? Are you sure you didn't get the .82 overdrive? If you can give me your tire size, RPM and speed in 5th gear I can tell you what overdrive ratio you have.

Hey Tom,

Cruise isn't the reason I'm saying "too much gear". It's 1st gear that's not useable. I just get rolling in 1st and it's already time to shift to 2nd. I had a 3.08 in a 496 powered 69 Stingray of mine with a Richmond 6 speed (similar 1st gear ratio as the Tremec) That 1st gear ratio was perfect out of the hole. I DO know what OD I have in the TKO600 as I'd spec'd it and got it new from Jimmy at Standard Tranny. I have access to all the ratio charts one could shake a stick at.

Dave