When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I think the naming nomenclature changed a couple times over the years. GM certainly couldn't make up their minds about what to call their transmissions...... Is it a 700R4? Or is it a 4L60??
I wonder if 46RH ----> 46RE coincided with OBD1----> OBD2.