Gear Ratio ??
 

:canada: :bowtie: My 68 chevy 1/2 ton is going to be a nice driver. I plan on using a 350 with approx. 300 horses. I want good acceleration off the line, so what rearend gear ratio do you guys suggest, and what will it give me on the top end???

I'm going to be running a turbo 350 for tranny.

Depending on what tire size you end up running, I would say a 3.23 - 3.31 is as low(geared) high(number) as your gonna want to go. You cant have the best of both worlds. I have 4.11's in my 68 right now and am gonna swap it out for a 3.08 here real quick. I spend most of my time on the freeway so the top end is way more important for me that the low end.
Good luck,
Jason

3.23 to 3.42 is about all i would go with the th350 not to radical just a good compramise as stated above.

Now if you want the adrenaline shakes:D with an ear to ear grin go with somthing like a 4.56 possi and a 4speed auto.

I spend a little time on the Freeway so I went with 3.55, it puts me at about 3500RPM at 85MPH with 30" tires. I can still get off the line pretty good.

Based on a 28" tall tire, 3.73 gears are a good all around gear. If you do more hyway driving, I go along with the other guys on that mid 3s gear. You will still have decent acceleration, but be able to cruise a little faster. as far as top speed, i have seen the 3.73s render the stock speedo totaly useless....crazyL:)