[GLHS60]

A-413's have transfer gears that are easy to change and are available in 3 ratios. Most are about 1.05 but some early Omni's had 1.22 for faster acceleration but higher cruising RPM. Early K cars and later Omnis had .91 for slower acceleration but lower cruising RPM. This has nothing to do with your original question that Bob answered but might be of interest if you are trying to lower cruising RPM.

Thanks
Randy