O.E.M. = “Original Equipment Manufacturer”

In this video we looked at a B85 converter, which you find in GM Trucks, both 2-wheel drive and 4-wheel drive, with a 4L60 transmission.

The most common issue you see with an OEM B85 is the rivet heads holding the spring casing to the piston body tend to sometimes break off. When this occurs, broken rivets will damage the friction material, which ultimately destroys the converter. 

How do we fix these problems?

In order to take the stress off the rivets, we perform a bridge weld on the back side of the piston body, which ties the spring casing and the piston body together. This takes the stress off the rivet heads and distributes it evenly across the entire piston. This process is performed on 100% of this style converter to make sure each parts meets the highest quality standard.

These are just some of the ways DACCO is making OEM converters better.

Filming and Editing provided by Michael’s Video Production