Banks brings forced air cooling to the heavy-duty Allison 10L1000 transmission for 2020-2026. Using technology from our patented differential covers, the Banks Ram-Air Transmission Pan extends fluid oil life by rejecting more heat than stock and all competitors. An additional three quarts of capacity, a break-away Ram-Air scoop, and Banks FlowThru Fins^® aid in cooling. Cooler fluid means a longer-lasting transmission. Patent No. US 12,313,156 B1