The problem: certain 2020-2021 model-year Chevy Silverado HD and GMC Sierra HD trucks may have a condition in which the transmission oil cooler jumper line has a leak at the crimp.

Florida-based company Improved Racing has launched a thermostatic transmission fluid cooler adapter for six-speed, eight-speed and ten-speed GM transmissions.

These vehicles may have an improperly fitted transmission oil cooler line. An insecure fitting of the line could result in the transmission fluid contacting a hot surface and potentially causing a ...

Dorman continues to add to its industry-leading catalog of transmission oil cooler lines, with 10 new solutions this month, eight of which are aftermarket-exclusive.