Rear End, Gear Equation Help - Lateral-g Forums

**214Chevy** · #1 01-20-2010, 09:24 AM

Does someone know a website or something where I can input my rear tire size, etc. to figure out what size gears I need? I will be putting a 9" in my Chevelle with a T56 Magnum and want to make sure my 6th gear is very useable. So, I don't know if a 3.89 or a 4.11. My car is strictly a street car and want good driveability. I know 4.11's will use alot of gas, but I'd sacrifice the gas for a useable 6th gear.

Romulus · #2 01-20-2010, 09:44 AM

Here's a very simple one.

http://www.richmondgear.com/101032.html

Don't forget you still want to keep first useable too though and you'll wanna keep your cam/power range in mind.

Mkelcy · #3 01-20-2010, 09:45 AM

What size rear tire do you run?

**214Chevy** · #4 01-20-2010, 09:54 AM

Quote:

Originally Posted by Mkelcy

What size rear tire do you run?

I have 20x11's on the rear. Approx 27-28" tall.

Mkelcy · #5 01-20-2010, 10:09 AM

PM me your email, and I can send you an Excel spreadsheet that will do everything you want, and more.

**214Chevy** · #6 01-20-2010, 10:36 AM

Quote:

Originally Posted by Mkelcy

PM me your email, and I can send you an Excel spreadsheet that will do everything you want, and more.

PM sent, thanks!