I read your information on the ebay listing. My 235 is from a '61 Biscayne, so it is the larger balancer pulley I suspect. What is the fix for that given the concerns about cracking the cooling fan? Other than that concern, it appears this would be the fix for my overheating problem, so I'd sure like to try it. Also, Carter's response to me was to use a 216 water pump with the adapter and you are suggesting a '53 235 pump if I read this right. Is there a difference or are 216 and early 235 pumps the same? Thanks.