Low trans oil pressure

[New.yuser]

When the machine is cold, the gauge looks normal, but once it warms up the pressure drops off more than I think it should and at times it even flutters, especially when I shift under load.
Fluid is at the right level and it doesn't look burnt, so I don't think it's just low oil. I dont know if there's a weak pump maybe, aclogged filter, or something but either way, I don't want to ignore it and end up with a transmission rebuild, not like I even know how to anyway

 

[Juli_Mizrahi]

Don't ignore fluttering pressure. That's how you cook clutches. If you've ruled out low fluid, next steps are filter, then pressure test the pump when hot. A shop with JCB gauges can tell you real quick if the pump's losing prime or if it's something deeper.