one quick question. for the 69 mustang did the size of the radiator differ with whether it had a/c or not??? cuz the rad i have now is the bolt in type, but i notices one of my dads friends has a 69 with one of those rads that rids in the saddle and a bracket on top to hold it, he has a/c, i do not..... the one i have is 21x16 and it bolts in, his is 26x 16 and its the saddle. is the difference because of the a/c or are there other factors, we both have 351w thanks lucas

 

The AC car should have a larger radiator. The one in yours is bigger than stock. Stock was a 2 row 16-5/16 X 20 -1/2 X 1 -1/4