The Ford Barn - View Single Post

miker98038 · 10-09-2020, 06:36 PM

Lots of good advice, but if you're going to pull the 289/C4 combo and go with the 351/AOD, the rear gears are going to be a compromise. A good torquey 351 with 3.5's or 3.9's would really be a nice driver in a light car like that. The o/d would give a final ratio equivalent to 2.6, and make a great highway gear. And the 3.9's should let you "break a wheel loose". Better buy the posi unit.

10-09-2020, 06:36 PM	#12
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,398	Re: 1967 Mustang rear end gear ratio Lots of good advice, but if you're going to pull the 289/C4 combo and go with the 351/AOD, the rear gears are going to be a compromise. A good torquey 351 with 3.5's or 3.9's would really be a nice driver in a light car like that. The o/d would give a final ratio equivalent to 2.6, and make a great highway gear. And the 3.9's should let you "break a wheel loose". Better buy the posi unit.