Hello
They may have put a larger radiator in the Jeep or there might be 2 sets of holes in the mounting flanges. I know on the 76 and up you can use 2 different bolt holes to mount the radiator. It has been 20 years since I've been under the hood of a 75 and older CJ5. There is very little clearance even with the stock radiator that is why the steel part of the hose has the crazy bends in it. I take the radiator bolts out to put the power steering hose in I remember. I hope this might of helped a little but it is a tight squeeze.