Overflow bottle

Do you have a link where you purchased the overflow?



The 72 back never used a factory overflow bottle. If the 73 up will fit you will have to drill a hole for the nub on the bottom to fit in to. If I recall correctly that hole is in the frame rail. If you get a 73 up bottle make sure you get the metal mounting bracket with it.

You will also need to buy a radiator cap that will work with an overflow bottle because the original one won't.