A833 trans gear question
Thank you I have them a call and they told me it's a 71 A-body 2.47 close ratio!
Before you get overly excited, that trans (yes I have one) may not be what you think it is; It's not like a Muncie close ratio.
In my experience a good second gear for a stout 360 is around 6.82. This will get you about 11.77 mph per 1000 rpm so; 3500 is 41 mph, and 60 is 5100. This allows a nice 268* cam.
Below are the Mopar boxes, with splits first column to the right.
In the Third column, are listed the rear gears required to get this 6.82
In the Fourth column is your cruise rpm with the nearest diff @65 mph.
In the Fifth column are the starter gears
2.47-1.77-1.34-1.00 --- .73-.76-.75 --- 3.85 --- 3165 (3.91s) --- 9.66
2.66-1.92-1.40-1.00 --- .72-.73-.71 --- 3.55 --- 2873 (3.55s) --- 9.44
3.09-1.91-1.39-1.00 --- .62-.72-.72 --- 3.57 --- 2873 (3.55s) ---10.97
3.09-1.67-1.00-.73od --.54-.60-.73 --- 4.08 --- 2428 (4.11s) --- 12.70
same od box but3.91s gets you a 6.52second--2310 (3.91s) --- 1208
Happy HotRodding
