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tmoble · 05-01-2011, 08:51 PM

I have a different take on it. Most GM cars that had a 200 or 700 OD tranny had more like 3.40 or so gear. IMO, if you run a 3.00 behind a OD tranny it'll never get into OD till freeway speeds. Around town you might as well not have OD.

I have a 70 Chevelle with a 406 torque monster engine with a 200-R4 OD tranny and 3.73 gear. If I had it to do again it would be a 3.42 or 3.36.

OD with 3.00, only if you live at Bonneville.

05-01-2011, 08:51 PM	#3
tmoble Registered User Join Date: Feb 2009 Location: Glendale, Az Posts: 1,062	Re: Ford 9" gear ratio question I have a different take on it. Most GM cars that had a 200 or 700 OD tranny had more like 3.40 or so gear. IMO, if you run a 3.00 behind a OD tranny it'll never get into OD till freeway speeds. Around town you might as well not have OD. I have a 70 Chevelle with a 406 torque monster engine with a 200-R4 OD tranny and 3.73 gear. If I had it to do again it would be a 3.42 or 3.36. OD with 3.00, only if you live at Bonneville.