Transmission heater exchanger's cooler

[gm4106]

Can someone tell me if there is any differences as far as size or as
cooling capability goes on any of these 3 cooler,one an GM transit bus
cooler for a V730, Two an GM VS-2 transmission cooler, or three the one they use on a Flex bus
cooler. These are the water cooler heat exchanger's

[TomC]

Measuring them will start to tell the story.  Good Luck, TomC

[gm4106]

Thanks Tom, That's what I was hoping for, that some one out there had something laying around the shop they could messure for me.