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I think perhaps it’s torque related. I just wondered if there might be another idea. It’s a pop up camper, not a hard side, so not that tall. When driving with the wind, it seems fine. When going up a slight pitch, it’ll just shift down. I’ve even messed with the auto-gear selector buttons...
Here’s a weird one. Just had a muffler shop install a new magnaflow, which Magnaflow says is the right option for the truck. However, now at highway speed, it drops out of 8th into 7th and is squashing my mpg. Caveat, I have a truck camper in the bed of the truck, but I had zero issues (other...