I have heard that someone has found a passive oil cooler that bolts to the PTO flange on the NP200. Do any of you think that would work to keep temps down?

I know that they make 'em for some t-cases, like this:



It's about 3 hours of driving to my claims in the M715, and the first two hours are highway hours (45-50 MPH) and some real hills. I can see (and smell) the overheating NP200 coming.

I don't want to install a pump and run lines.