Anyone want to talk Chevy! LOL

Glides are pretty bulletproof. They came with a couple different 1st gear ratios. They were all 1:1 top gear though just like a th350. El camino's usually got car gears. There was really nothing truck about them. Just a Chevelle with a big trunk. The numbers off the trans and rear should let you know what you've got. 3.55 or 3.73 usually are a good compromise with a glide.