I was driving unloaded today on the highway and around town and my trans temps just kept rising. I just changed my trans fluid last week. Could there be an issue with my stock cooler? Im nervous now cause Ill be moving soon across the county and will be pulling a U haul trailer out there. I dont want it to overheat the trans when its reaching 218 unloaded. And no I wasn't on it at all. Just normal driving. What are my options? Dual coolers? 6.0 cooler? trans go? What do you think will be the best for the money?