- May 28, 2015
- 1977 light blue
I'm trying to figure the gearing in both of my Vettes. I'm revving about 3000 at 70 mph in my 77, and I rev 3400 at 70 with my 79. So far I've read that in 79 L48 with automatic trans came with 3.55 to 1, but it seems like it has 3.70 to 1. Maybe the previous owner changed ring and pinion, or it was ordered as an option. Any input would be appreciated.