Odd Overheating Problem

[1996GT]

So i have this weird overheating issue with my 96 gt. It will start running hot only when i get on it or going up a steep hill for more than a quarter mile. Unlike the usual overheating at stop lights and such. Other than that, it runs at the mid point all day!
Ive searched on here and read about the overheating issues with the 96 but i wasnt sure if my situation is the same. Thanks

 

[1996mustangGT]

I would guess its the same thing? Just when your engine is working kinda hard? Maybe thats why...

 

[1996GT]

Thanks, just wanted to double check just in case. Have you replaced your radiator yet?

 

[1996mustangGT]

Nah I'm running a 160* thermostat and I rarely overheat unless it really hot outside.
Mishimoto makes a nice replacement for relatively cheap if you want to pgrade though...ill be doing that when it comes time for my 5.4..