Her are a few of the GM gear ratios:
43/14=3.07
36/12=3.08
3.23
43/13=3.31
37/11=3.36
3.42
39/11=3.55
36/10=3.70
41/11=3.73
39/10=3.90
41/10=4.10
37/9=4.11
50/11=4.55
41/9=4.56
32/7=4.57
39/8=4.88
36/7=5.14
The ring gear tooth count & pinion gear tooth count, is stamped on the outside edge of the ring gear. Divide the big number, by the small number & viola, the gear ratio. I keep this information on my notepad on my phone, as a quick reference guide.
Last edited by 4-5-6 Chevy Trucks; 01/14/2014 10:13 PM.
