[Ooh_Smoothe]

I am installing an AOD transmission with the 302 I just purchased. I also just got a 9 inch rear end that I am planning on putting either 3.5 or 3.7 gears into. What length of driveshaft do I need to use? I found several on MustangsPlus but I'm unsure of how to determine the right length. What are they measuring. Help, Please!

[.boB]

Too many variables for someone to give you an accurate number. Install engine and trans, then measure for the new drive shaft.

BTW, unless that 302 is a real monster, 9" rear is too heavy and takes too much hp to run. You're much better of with a well built 8".

[Ooh_Smoothe]

I spoke with a guy on the phone from another link that I was given on here that said they were really good with rear ends and this guy even told me that I needed to put in a 9 inch. Im pushing 331 hp before any upgrades to the motor.