steffan
SILVER Star
I had a similar experience: radiator was perfect so there was no way I was going to replace it for just the nipple. Even though its relatively low pressure/ light load, I wouldn't do it without a sleeve, didn't feel there was enough material there to hold it. Drilled it out, roughed up the pipe, made sure there was good coverage inside and out (making sure not to obstruct the passageway) and put the JB Weld to it. 10k miles no issues.